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RBI ASSISTANT 2019 — Quantitative Aptitude Questions with Answers

All 84 Quantitative Aptitude previous-year questions from RBI ASSISTANT 2019, each with the correct answer and a full explanation. Practise them as a free, timed mock test with instant scoring.

1. Q1.Simplification

   What will come in place of (?): √(124 + ? + 169) = 18

   • a)34
   • b)31
   • c)33
   • d)35
   • e)32
2. Q2.Simplification

   What will come in place of (?): 136 ÷ 2² × ? = 17% of 500 ÷ 10

   • a)0.75
   • b)1.33
   • c)0.25
   • d)1.66
   • e)0.5
3. Q3.Simplification

   What will come in place of (?): 115 ÷ 5 + 12 × 6 = ? + 64 ÷ 4 − 35

   • a)114
   • b)118
   • c)108
   • d)116
   • e)111
4. Q4.Simplification

   What will come in place of (?): 41% of 600 − 250 = ? − 77% of 900

   • a)693
   • b)675
   • c)684
   • d)679
   • e)689
5. Q5.Simplification

   What will come in place of (?): 1/2 − 3/5 + 4 2/3 = ? + 5/6

   • a)3 11/15
   • b)5 11/15
   • c)3 11/12
   • d)2 11/12
   • e)4 11/15
6. Q6.Simplification

   What will come in place of (?): 65 × 3 ÷ 13 + 67 − ?² = 81 ÷ 9 × 2

   • a)9
   • b)5
   • c)12
   • d)8
   • e)14
7. Q7.Simplification

   What will come in place of (?): (2744)^(1/3) + (18)² − 121 = ? − 69 × 5

   • a)658
   • b)568
   • c)666
   • d)656
   • e)562
8. Q8.Simplification

   What will come in place of (?): 1111 ÷ 11 + 2002 ÷ 26 + 750 ÷ 25 = ?

   • a)204
   • b)212
   • c)208
   • d)206
   • e)210
9. Q9.Simplification

   What will come in place of (?): 5/11 × 121 + 1 4/9 × 288 = 141 + ?

   • a)333
   • b)327
   • c)335
   • d)330
   • e)329
10. Q10.Data Interpretation

    A bar graph shows the number of residents in four societies A, B, C and D in two years. In 2008: A=250, B=420, C=300, D=400. In 2018: A=350, B=370, C=420, D=480. What is the average of residents residing in society A in 2008, B in 2018, C in 2018 and D in 2008?

    • a)355
    • b)360
    • c)365
    • d)370
    • e)350
11. Q11.Arithmetic

    A shopkeeper sells two pens; one at a profit and the other at a loss. The selling price of each pen is Rs.300 and the profit percentage on one pen equals the loss percentage on the other. If the overall loss of the shopkeeper is 6.25%, find the difference between the cost prices of the two pens.

    • a)Rs.350
    • b)Rs.100
    • c)Rs.240
    • d)Rs.160
    • e)Rs.300
12. Q12.Arithmetic

    A man received Rs.3456 as interest when he invested Rs.P at 12% p.a. simple interest for 3 years. If he invested Rs.(P + 4400) at 15% p.a. compound interest (compounded annually) for 2 years, find the interest received by him.

    • a)Rs.4515
    • b)Rs.4960
    • c)Rs.4725
    • d)Rs.4185
    • e)Rs.4345
13. Q13.Arithmetic

    The time taken by a boat to cover 162 km each in downstream and in upstream together is 14 hours 24 minutes. If the speed of the stream is 6 km/hr, find the time taken by the boat to cover 240 km in upstream.

    • a)7 1/3 hours
    • b)18 2/3 hours
    • c)9 1/3 hours
    • d)16 2/3 hours
    • e)13 1/3 hours
14. Q14.Arithmetic

    C is 100% more efficient than B. A alone can complete a piece of work in 9 days and B & C together can complete the same work in 2 2/3 days. Find what portion of the work will be completed if A & B work together for 4 days.

    • a)13/18
    • b)8/9
    • c)5/6
    • d)2/3
    • e)17/18
15. Q15.Arithmetic

    The ratio of the age of P 2 years ago to the age of R 2 years hence is 1 : 2, and Q's present age is 25% more than P's present age. If the average of the present ages of P & R is 39 years, find the difference between P's age 5 years hence and R's present age.

    • a)12 years
    • b)17 years
    • c)21 years
    • d)15 years
    • e)14 years
16. Q16.Quadratic Equation

    Solve and mark the relation. I. x² − 2x − 143 = 0 II. y² − 169 = 0

    • a)x > y
    • b)x < y
    • c)x ≤ y
    • d)x ≥ y
    • e)x = y or no relation can be established
17. Q17.Quadratic Equation

    Solve and mark the relation. I. x² − 7x − 18 = 0 II. y² − 19y + 90 = 0

    • a)x ≤ y
    • b)x = y or no relation can be established
    • c)x > y
    • d)x ≥ y
    • e)x < y
18. Q18.Quadratic Equation

    Solve and mark the relation. I. 2x² + 5x + 3 = 0 II. y² + 4y − 12 = 0

    • a)x ≤ y
    • b)x > y
    • c)x = y or no relation can be established
    • d)x < y
    • e)x ≥ y
19. Q19.Quadratic Equation

    Solve and mark the relation. I. 9x + 3y = 15 II. 4x + 5y = 14

    • a)x = y or no relation can be established
    • b)x > y
    • c)x ≤ y
    • d)x < y
    • e)x ≥ y
20. Q20.Quadratic Equation

    Solve and mark the relation. I. 2x² − x − 1 = 0 II. 3y² − 5y + 2 = 0

    • a)x ≤ y
    • b)x < y
    • c)x = y or no relation can be established
    • d)x ≥ y
    • e)x > y
21. Q21.Number Series

    Find the wrong number in the series: 2, 3, 6, 15, 45, 156.5, 630

    • a)2
    • b)15
    • c)3
    • d)156.5
    • e)630
22. Q22.Number Series

    Find the wrong number in the series: 36, 20, 12, 8, 6, 5.5, 4.5

    • a)8
    • b)36
    • c)5.5
    • d)4.5
    • e)6
23. Q23.Number Series

    Find the wrong number in the series: 1, 3, 9, 31, 128, 651, 3913

    • a)31
    • b)3
    • c)1
    • d)3913
    • e)128
24. Q24.Number Series

    Find the wrong number in the series: 2, 3, 10, 40, 172, 885, 5346

    • a)40
    • b)885
    • c)172
    • d)3
    • e)10
25. Q25.Number Series

    Find the wrong number in the series: 5, 8, 16, 26, 50, 98, 194

    • a)5
    • b)194
    • c)8
    • d)16
    • e)98
26. Q26.Arithmetic

    A rectangular path of width 3 m surrounds a garden whose length is 3 m more than its width. If the cost of painting the path at the rate of Rs.0.5 per m² is Rs.273, find the area of the garden.

    • a)1525 m²
    • b)1804 m²
    • c)1776 m²
    • d)1906 m²
    • e)1664 m²
27. Q27.Arithmetic

    In a class, 60% of the students passed the exam and the number of boys and girls who passed is the same. If the number of boys who failed is 200% more than the number of girls who failed, find the percentage of girls who failed out of the total students.

    • a)9%
    • b)13%
    • c)10%
    • d)12%
    • e)15%
28. Q28.Arithmetic

    A man invested Rs.X at 15% p.a. simple interest for 4 years and Rs.(1.35X) at 18% p.a. simple interest for 3 years. If the total interest received is Rs.15948, find the value of Rs.(3.12X).

    • a)Rs.50544
    • b)Rs.42764
    • c)Rs.32580
    • d)Rs.47372
    • e)Rs.37440
29. Q29.Arithmetic

    The average weight of a class is 60 kg and the average weight of the boys is 80 kg. The ratio of boys to girls is 5 : 4. If there are 72 students in the class, find the average weight of the girls.

    • a)54 kg
    • b)42 kg
    • c)35 kg
    • d)45 kg
    • e)38 kg
30. Q30.Quantitative Aptitude

    Four years hence, sum of ages of A and B will be 16 years more than the sum of present age of B and C. Four years ago, sum of age of A and C was 32 years. Find the present age of C.

    • a)24 years
    • b)20 years
    • c)12 years
    • d)16 years
    • e)18 years
31. Q31.Quantitative Aptitude

    A person purchased two articles at the same price. On selling the first article he makes a profit of 12%. Selling price of second article is Rs. 90 more than the selling price of the first article. Find the cost price of one article if his overall profit percent is 15%.

    • a)Rs 1800
    • b)Rs 1500
    • c)Rs 2000
    • d)Rs 2400
    • e)None of these
32. Q32.Quantitative Aptitude

    Ratio of speed of boat in still water to the speed of current is 10:1. Ratio of time taken by the boat to cover D km downstream to the time taken to cover (D-45) km upstream is 3:2. Find the value of D.

    • a)60 km
    • b)87 km
    • c)99 km
    • d)108 km
    • e)90 km
33. Q33.Quantitative Aptitude

    A container contains a mixture of milk and water in which water is 24%. 50% of the mixture is taken out, in which water is 78 litre less than the milk. Find the remaining quantity of milk in that container.

    • a)171 lit
    • b)152 lit
    • c)133 lit
    • d)108 lit
    • e)114 lit
34. Q34.Quantitative Aptitude

    The perimeter of a triangle is equal to the perimeter of a rectangle. Length of rectangle is 75% of side of a square and ratio of length to breadth of rectangle is 3:2. If the difference between perimeter of square and that of rectangle is 36 cm, find the perimeter of the triangle.

    • a)60 cm
    • b)48 cm
    • c)72 cm
    • d)80 cm
    • e)96 cm
35. Q35.Quantitative Aptitude

    Pie chart shows number of persons visiting a national park on different days (Total = 400: Friday 25%, Saturday 30%, Sunday 45%) and the table shows male:female ratio [Friday 2:3, Saturday 5:7, Sunday 5:4]. If on Monday number of males is increased by 20% over males visiting on Saturday and females on Monday is 33 1/3 % more than females on Friday, then find the total persons visiting the national park on Monday.

    • a)145
    • b)165
    • c)140
    • d)160
    • e)150
36. Q36.Quantitative Aptitude

    [Refer to the national park pie chart in Q41] Total females visiting on Sunday and Saturday together are what percent more or less than total males visiting on Friday and Sunday together.

    • a)33 1/3 %
    • b)14 2/7 %
    • c)16 2/3 %
    • d)14 1/7 %
    • e)7 1/7 %
37. Q37.Quantitative Aptitude

    [Refer to the national park pie chart in Q41] What is the average of males visiting the national park on all these days?

    • a)63 1/3
    • b)65 2/3
    • c)49 2/3
    • d)45 1/3
    • e)66 2/3
38. Q38.Quantitative Aptitude

    [Refer to the national park pie chart in Q41] If cost of ticket per male and per female on any day is Rs 45 and Rs 40 respectively, then total amount obtained on Friday is how much more or less than total amount obtained on Sunday (in Rs).

    • a)2800
    • b)3500
    • c)3000
    • d)3200
    • e)4200
39. Q39.Quantitative Aptitude

    [Refer to the national park pie chart in Q41] What is the ratio of males visiting the park on Friday to females visiting the park on Saturday?

    • a)4 : 5
    • b)7 : 3
    • c)3 : 7
    • d)4 : 7
    • e)7 : 4
40. Q40.Quantitative Aptitude

    Solve the quadratic equations and mark the correct option. I. x^2 - 14x + 45 = 0 II. y^2 - 18y + 72 = 0

    • a)x > y
    • b)x >= y
    • c)x < y
    • d)x <= y
    • e)x = y or no relation can be established
41. Q41.Quantitative Aptitude

    Solve the quadratic equations and mark the correct option. I. x^2 + 7x + 12 = 0 II. y^2 + 9y + 20 = 0

    • a)x > y
    • b)x >= y
    • c)x < y
    • d)x <= y
    • e)x = y or no relation can be established
42. Q42.Quantitative Aptitude

    Solve the quadratic equations and mark the correct option. I. 4x^2 - 7x + 3 = 0 II. 7y^2 - 17y + 6 = 0

    • a)x > y
    • b)x >= y
    • c)x < y
    • d)x <= y
    • e)x = y or no relation can be established
43. Q43.Quantitative Aptitude

    Solve the quadratic equations and mark the correct option. I. 2x^2 - 19x + 45 = 0 II. 2y^2 - 9y + 4 = 0

    • a)x > y
    • b)x >= y
    • c)x < y
    • d)x <= y
    • e)x = y or no relation can be established
44. Q44.Quantitative Aptitude

    Solve the quadratic equations and mark the correct option. I. x^2 = 144 II. (y + 12)^2 = 0

    • a)x > y
    • b)x >= y
    • c)x < y
    • d)x <= y
    • e)x = y or no relation can be established
45. Q45.Quantitative Aptitude

    Bar graph shows number of packets of flour sold by five stores (A, B, C, D, E) of two types: Multigrain and Whole-wheat. [Multigrain: A=40, B=60, C=80, D=40, E=100; Whole-wheat: A=80, B=40, C=60, D=80, E=72]. Total number of packets sold by store C is approximately what percent more or less than number of packets sold by store E?

    • a)3%
    • b)5%
    • c)12%
    • d)23%
    • e)17%
46. Q46.Quantitative Aptitude

    [Refer to the flour packets bar graph in Q51] What is the ratio of number of Multigrain packets sold by stores A and D together to number of Whole-wheat packets sold by stores A and E together?

    • a)2 : 1
    • b)73 : 58
    • c)43 : 41
    • d)41 : 23
    • e)None of these
47. Q47.Quantitative Aptitude

    [Refer to the flour packets bar graph in Q51] Multigrain packets sold by stores A and B together is what percent more or less than Whole-wheat packets sold by stores C and D together?

    • a)25%
    • b)20%
    • c)30%
    • d)None of these
    • e)35%
48. Q48.Quantitative Aptitude

    [Refer to the flour packets bar graph in Q51] Store F sold Multigrain packets equal to the average of Multigrain packets sold by stores C, D and E, and Whole-wheat packets equal to the average of Whole-wheat packets sold by stores A and E. If store B sold each packet at Rs 240 and store F sold each packet at 20% more than that of B, find total price collected by store F.

    • a)Rs 24246
    • b)Rs 28246
    • c)None of these
    • d)Rs 36864
    • e)Rs 32863
49. Q49.Quantitative Aptitude

    [Refer to the flour packets bar graph in Q51] What is the difference between total number of Multigrain packets sold by all stores together and number of Whole-wheat packets sold by all stores together?

    • a)48
    • b)54
    • c)42
    • d)36
    • e)24
50. Q50.Quantitative Aptitude

    What will come in place of (?) in the series: 200, 197, 185, 163, 130, ?

    • a)95
    • b)85
    • c)105
    • d)86
    • e)84
51. Q51.Quantitative Aptitude

    What will come in place of (?) in the series: 15, 8, 9, 15, 32, ?

    • a)98
    • b)66
    • c)80.5
    • d)82.5
    • e)84.5
52. Q52.Quantitative Aptitude

    What will come in place of (?) in the series: 5, 30, 150, 600, ?

    • a)1200
    • b)1500
    • c)2400
    • d)1800
    • e)600
53. Q53.Quantitative Aptitude

    What will come in place of (?) in the series: 222, 110, 54, 26, ?

    • a)10
    • b)12
    • c)8
    • d)6
    • e)14
54. Q54.Quantitative Aptitude

    What will come in place of (?) in the series: 104, ?, 96, 120, 88, 128

    • a)112
    • b)96
    • c)116
    • d)120
    • e)92
55. Q55.Quantitative Aptitude

    A invested Rs. X in a scheme. After 6 months, B joined with Rs. 4000 more than that of A. After a year, ratio of profit of B to the total profit was 3:7. Find the value of X.

    • a)4000
    • b)8000
    • c)1600
    • d)6000
    • e)10000
56. Q56.Quantitative Aptitude

    Rs. 1500 is invested in scheme A at R% p.a. simple interest. Another amount (1500 - x) is invested in scheme B at 2R% p.a. simple interest. After 4 years, interest earned from scheme A is 25% less than that of scheme B. Find x.

    • a)500
    • b)600
    • c)900
    • d)1000
    • e)1200
57. Q57.Quantitative Aptitude

    40 men can complete a work in 48 days. 64 men started the same work for x days. After x days, 32 men are added, so the remaining work is completed in 16 2/3 days. Find x.

    • a)5
    • b)8
    • c)10
    • d)6
    • e)None of these
58. Q58.Quantitative Aptitude

    If perimeter of the base of a cylinder is 66 cm, find the volume of the cylinder if height of cylinder is 0.04 m.

    • a)1111 cm^3
    • b)1386 cm^3
    • c)2046 cm^3
    • d)1186 cm^3
    • e)2002 cm^3
59. Q59.Quantitative Aptitude

    A 175 metres long train P passed a pole in 8.75 sec. Train P passed another train Q travelling in opposite direction in 60/7 sec. If length of train Q is 225 metres, then in what time will train Q pass train P when they both run in the same direction?

    • a)55 sec
    • b)50 sec
    • c)45 sec
    • d)60 sec
    • e)35 sec
60. Q60.Quantitative Aptitude

    3 pizza shops A, B and C sell veg and non-veg pizza. Ratio of veg to non-veg sold by A is 9:7 and by B is 3:4. Pizzas sold by C = 108 with veg to non-veg ratio 7:5. Total pizzas sold by all three = 376. Veg pizza sold by A is 20% more than veg pizza sold by B. If cost of each veg pizza and each non-veg pizza sold by shop B is Rs 200 and Rs 300 respectively, find the total amount obtained by shop B (in Rs).

    • a)40,000
    • b)36000
    • c)48000
    • d)32000
    • e)44000
61. Q61.Quantitative Aptitude

    [Refer to the pizza shops data in Q66] What is the ratio of veg pizza sold by shops A & C together to the non-veg pizza sold by shops B & C together?

    • a)27 : 25
    • b)27 : 29
    • c)29 : 27
    • d)25 : 27
    • e)23 : 25
62. Q62.Quantitative Aptitude

    [Refer to the pizza shops data in Q66] What is the average of veg pizza sold by all shops?

    • a)61
    • b)68
    • c)62
    • d)60
    • e)65
63. Q63.Quantitative Aptitude

    [Refer to the pizza shops data in Q66] Total veg pizzas sold by shops A and C are what percent of total non-veg pizza sold by shops B & C?

    • a)113%
    • b)108%
    • c)109%
    • d)112%
    • e)116%
64. Q64.Quantitative Aptitude

    [Refer to the pizza shops data in Q66] If veg pizza sold by shop B is increased by 33 1/3 % and non-veg pizza sold by shop A is increased by 75%, then what is the sum of veg pizza sold by B and non-veg pizza sold by A after increment?

    • a)178
    • b)186
    • c)198
    • d)200
    • e)182
65. Q65.Number Series

    7, 11, 23, 51, 103, ? — find the next term.

    • a)187
    • b)193
    • c)195
    • d)185
    • e)173
66. Q66.Number Series

    16, 23, 28, 38, ?, 62 — find the missing term.

    • a)51
    • b)47
    • c)53
    • d)45
    • e)49
67. Q67.Number Series

    2, 6, 30, 60, 130, ? — find the next term.

    • a)220
    • b)210
    • c)200
    • d)190
    • e)180
68. Q68.Number Series

    23, 39, 71, 119, ? — find the next term.

    • a)192
    • b)181
    • c)174
    • d)183
    • e)185
69. Q69.Number Series

    11, 26, 51, 76, 115, 174, ? — find the next term.

    • a)245
    • b)243
    • c)217
    • d)219
    • e)231
70. Q70.Number Series

    221, 222, 223, 225, 228, 233, 241, 254, ? — find the next term.

    • a)263
    • b)296
    • c)308
    • d)275
    • e)302
71. Q71.Number Series

    462, 506, 552, 600, 650, ? — find the next term.

    • a)806
    • b)718
    • c)750
    • d)812
    • e)702
72. Q72.Number Series

    972, 648, 432, 288, ? — find the next term.

    • a)186
    • b)192
    • c)212
    • d)188
    • e)200
73. Q73.Number Series

    17, 34, 31, 124, 119, 714, ? — find the next term.

    • a)4284
    • b)743
    • c)707
    • d)711
    • e)728
74. Q74.Number Series

    11, 13, 16, 21, 28, 39, 52, ? — find the next term.

    • a)89
    • b)83
    • c)69
    • d)67
    • e)72
75. Q75.Number Series

    23, 31, 29, 35, 35, 39, ? — find the next term.

    • a)39
    • b)44
    • c)47
    • d)41
    • e)37
76. Q76.Number Series

    123, 124, 120, 129, 113, 138, ? — find the next term.

    • a)102
    • b)152
    • c)172
    • d)113
    • e)165
77. Q77.Number Series

    67, 68, 76, ?, 167 — find the missing term.

    • a)112
    • b)103
    • c)97
    • d)107
    • e)113
78. Q78.Number Series

    17, 25, 32, 37, ?, 58 — find the missing term.

    • a)51
    • b)47
    • c)43
    • d)49
    • e)45
79. Q79.Number Series

    14, 30, 63, 130, 265, ? — find the missing term.

    • a)428
    • b)447
    • c)489
    • d)536
    • e)545
80. Q80.Number Series

    31, 44, 88, 176, 847, 1595, ? — find the next term.

    • a)5586
    • b)2534
    • c)6537
    • d)1892
    • e)7546
81. Q81.Number Series

    2, 12, 36, 80, 150, ? — find the next term.

    • a)212
    • b)272
    • c)252
    • d)220
    • e)290
82. Q82.Number Series

    13, 18, 25, 34, 45, ? — find the next term.

    • a)58
    • b)54
    • c)67
    • d)59
    • e)65
83. Q83.Number Series

    113, 118, 128, 139, 152, ? — find the next term.

    • a)172
    • b)159
    • c)166
    • d)160
    • e)162
84. Q84.Number Series

    -2, -3, 8, 95, ? — find the next term.

    • a)673
    • b)684
    • c)691
    • d)672
    • e)671