Quantitative Aptitude Practice Questions for IBPS Clerk – Set
21
Directions
(1 – 5): Study the following information carefully and answer the question
given beside:
The table shows the
number of books sold by 5 different stores on 5 different weekdays.
Monday

Tuesday

Wed.

Thursday

Friday


A

95

112

82

102

125

B

84

105

98

70

76

C

104

75

80

92

110

D

115

92

81

98

72

E

88

60

74

108

1. The
total number of books sold by store A and C together on Tuesday is
approximately how much % more than the number of books sold by store A on
Friday?
a) 40%
b) 55%
c) 50%
d) 60%
e) 30%
2. Find the
ratio of the number of books sold by store C and D together on Thursday to the
number of books sold by store B on Monday and Friday together?
a) 19 : 16
b) 15 : 13
c) 9 : 7
d) 11 : 16
e) None of
these
3. Find the
average number of books sold by store D on Monday, Wednesday and Thursday.
a) 102
b) 76
c) 84
d) 98
e) 92
4. What is
the difference between the number of books sold by store E on Thursday and
Friday together to that of the number of books sold by store C on Wednesday and
Friday together?
a) 25
b) 36
c) 14
d) 9
e) None of
these
5. If the
average number of books sold by store C on Sunday, Tuesday and Thursday is 85
and the average number of books sold by store C on Saturday, Sunday and Friday
is 88, Find the ratio of the number of books sold by store C on Satuday to that
of Sunday.
a) 1 : 2
b) 5 : 7
c) 3 : 4
d) 4 : 9
e) None of
these
6. The
amount of water (in ml) that should be added to reduce 7 ml lotion, containing
70% alcohol, to a lotion containing 35% alcohol, is
a) 35ml
b) 4ml
c) 7ml
d) 10.5ml
e) Can’t be
determined
7. A
shopkeeper purchased 50 dozen bottles for Rs.3000. Out of these, 60
bottles were broken and could not be sold. At what rate per dozen should he
sell the remaining bottles to make a profit of 20%?
a) Rs.60
b) Rs.75
c) Rs.80
d) Rs.60
e) Rs.85
8. The
price of two apples X and Y are in the ratio of 2 : 3. X's price increased by
20% and the total price of X and Y together becomes Rs 175.5, with an increase
of 17%. By what percent the price of Y increased?
a) 18%
b) 25%
c) 20%
d) 15%
e) None of
these
9. Sum of 4
consecutive even numbers is greater than three consecutive odd numbers by 81.
If the sum of the least odd and even numbers is 59 then find the sum of largest
odd and even numbers.
a) 69
b) 53
c) 65
d) 72
e) 83
10. A can
do a piece of work in 24 days, B is 20% more efficient than A. If C can do the
work in 10 more days than B, In how many days can A and C do the whole work
together?
a) 25 days
b) 35/2
days
c) 40/3
days
d) 18 days
e) None of
these
Directions
(11 – 15): What value will come in place of question mark (?) in the following
questions: (You are not expected to calculate the exact value)
11. (626.72
– 257.65) ÷ 23.52 + 623.86 = ?
a) 540
b) 720
c) 640
d) 820
e) None of
these
12. 2462.92
× 390.06 – 17651.201 = ? + 4883.001
a) 938036
b) 920051
c) 852016
d) 980386
e) 754926
13. 1458.45
+ 2065.23 ÷ 15.02 = ? – 652.793
a) 2149
b) 2295
c) 2249
d) 2579
e) 2279
14. 29.783% of
3231 + 48.729% of 4003 = ? – 4823.72
a) 8509
b) 7754
c) 8263
d) 7584
e) 7692
15. 23 ×
5.2 + 24 × 1.2 – 32 × 4.7 – 35 × 1.02 + 97 × 4 = ?
a) 315.3
b) 350.3
c) 340.4
d) 348.3
e) 368.3
Directions
(16 – 20): What will come in place of question mark (?) in the given series:
16. 129
128 124 115
99 74 ?
a) 36
b) 32
c) 38
d) 42
e) 48
17. 221
? 165 140 117
96
a) 196
b) 186
c) 178
d) 192
e) 194
18. 2
3 6 15
45 ?
a) 157.5
b) 154.5
c) 142.5
d) 172
e) 155.5
19. 10
12 16 24 40
?
a) 76
b) 72
c) 68
d) 86
e) 92
20. 310
220 148 92
50 20 ?
a) 5
b) 10
c) 0
d) 8
e) 2
Solutions:
1. C) Number of books sold by store A on
Tuesday = 112
Number
of books sold by store C on Tuesday = 75
Number
of books sold by store A on Friday = 125
%
more = (112 + 75 – 125)/125 × 100 = 62/125 × 100 = 49.6%
2. A) The number
of books sold by store C and D together on Thursday = 92 + 98 = 190
The
number of books sold by store B on Monday and Friday together = 84 + 76 = 160
Ratio
= 190 : 160 = 19 : 16
3. D) Total
number of books sold by store D on Monday, Wednesday and Thursday = 115 + 81 +
98 = 294
Average
= 294/3 = 98
4. E) Number of
books sold by store E on Thursday and Friday = 108 + 92 = 200
Number
of books sold by store C on Wednesday and Friday = 80 + 110 = 190
Difference
= 200 – 190 = 10
5. C) Total
number of books sold by store C on Sunday, Tuesday and Thursday = 85 × 3 = 255
Number
of books sold by store C on Sunday = 255 – 75 – 92 = 88
Total
number of books sold by store C on Saturday, Sunday, and Friday = 88 × 3 = 264
Number
of books sold by store C on Saturday = 264 – 88 – 110 = 66
Ratio
= 66 : 88 = 3 : 4
6. C) Let the
required volume of water to be added = x ml
When
added to 7 ml lotion, the total volume = “7 + x” ml
If
the lotion contains 70% alcohol, then it contains 30% water
If
it contains 35% alcohol, it contains 65% water.
By
balancing the volume of water before and after dilution of the lotion, we get :
(Amount
of water in lotion before dilution) + (amount of water added) = (amount of water
in lotion after dilution)
(30%
of 7) + x = (65% of “7 + x”)
⇒ 210 + 100x
= 65 × (7 + x) ⇒ 210 + 100x = 455 + 65x ⇒ 35x = 245 ⇒ x = 7
7. C) Since there
are 12 quantities in a dozen
⇒ dozen of
bottles broken = 60/12 = 5 dozen
Required
amount to gain 20% profit = Rs 3000 × 120/100 = Rs.3600
Since
shopkeeper has to gain this amount by selling remaining 45 dozen of bottles
⇒ S.P. Per
Dozen = Rs 3600/45 = Rs.80
8. D) After
increment price of X and Y together = Rs 175.5
Price
before increment = 175.5/117 × 100 = Rs.150
Price
of apple X = 150/5 × 2 = Rs.60
Price
of apple Y = 150/5 × 3 = Rs.90
X's
price increased by 20%, X's price = 60 × 120% = Rs 72
Y's
new price = Rs.(175.5 – 72) = Rs.103.5
Y's
price increased by (103.5 – 90)/90 × 100 = 15%
9. A) Let 4
consecutive even numbers = x, x + 2, x + 4, x + 6
3
consecutive odd numbers = y, y + 2, y + 4
sum
of least odd and even numbers = 59
x
+ y = 59
Sum
of the largest odd and even numbers = x + 6 + y + 4 = x + y + 10 = 59 + 10 = 69
10. A) Ratio of
the efficiency of A and B = 100 : 120 = 5 : 6
Ratio
between the time taken by A and B = 1/5 : 1/6 = 6 : 5
If
A can do the work in 24 days then B can do the same work in = 24/6 × 5 = 20
days
C
can do the same work in 20 + 10 = 30 days.
A
and C together can do the same work = 1 /[(1/24 + 1/30)] = 1/[(5 + 4)/120] =
120/9 = 40/3 days
11. C) 12. A)
13. C) 14. B) 15. B)
16. C) Series pattern is 1, 4, 9, 16,
25, 36
17. D) Series
pattern is 29, 27, 25, 23, 21
18. A) Series
pattern is ×1.5, ×2, ×2.5, ×3, ×3.5
19. B) Series
pattern is +2, +4, +8, +16, +32
20. C) Double
difference
First
difference: –90, –72, –56, –42, –30, –20
Second
difference: –18, –16, –14, –12, –10