Quantitative Aptitude Quiz for IBPS | SBI – Set 212

1)6 9 15 27 51 ?
a) 84
b) 99
c) 123
d) 75
e) None of these

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Answer b)99
+3, +6, +12, +24, +48,…

2)15 25 40 130 ?
a) 500
b) 520
c) 490
d) 480
e) None of these

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Answer e)None of these
Sol. The series is ×1+10, ×2-10, ×3+10, ×4-10, ×5+10
130×4-10=520-10=510

3)6 13 38 ? 532 2675
a) 129
b) 123
c) 172
d) 164
e) None of these

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Answer 129

4)1 3 24 360 8640 302400 ?
a) 14525100
b) 154152000
c) 14515200
d) 15425100
e) None of these

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Answer C) 14515200

5)7 9 19 45 95 ?
a) 150
b) 160
c) 145
d) 177
e) None of these

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Answer (d) 177

6)A box contains 4 black balls, 3 red balls and 5 green balls. 2 balls are drawn from the box at random. What is the probability that both the balls are of the same colour?
a) 47/68
b) 1/6
c) 19/66
d) 2/11
e) None of these

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Answer c) 19/66
total balls = 4+3+5 =12
out of 12 we are drawing 2 balls of random
then 2 balls can be drawn in 12c2wys
then , probably both are of same colour=
4c2+3c2+5c2 /12c2=
3+6+10/6*11 = 19 /66

7) In a class, the average height of 35 girls was measured 160 cm. Later on, it was discovered that the height of one of the girl was misread as 144 cm, while her actual height was 104 cm. What was the actual average height of girls in the class? (rounded off to two digits after decimal)
a) 159.86 cm
b) 158.54 cm
c) 159.56 cm
d) 158.74 cm
e) None of these

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Answer e) 158.85cm
sum of height of girls =35*160= 5600
according to the qus.
the actual avarage height of girls
=5600-144+104/35
5600-40/35
=158.85cm

Directions (8-10): Study the following table carefully and answer the questions given below it.
Percentage of marks obtained by various students in various subjects in an examination

8) What is the approximate overall percentage obtained by C in the examination?
a) 78
b) 69
c) 75
d) 71
e) 65

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Answer d)71
Total marks obtained by C in the examination
= 75% of 100 + 56% of 100 + 72% of 150 + 75% of 60 + 75% of 150 + 80% of 40
= 75 + 56 + 108 + 45 + 112.5 + 32 = 428.5
∴ Required% =428.5/600×100≈71%

9)What is the difference in the marks obtained by B in English and Maths together and the marks obtained by F in the same subjects?
a) 24
b) 17
c) 15
d) 28
e) None of these

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Answer a)24
Difference of marks obtained by B & F in English = 3% of 100 = 3
Difference of marks obtained by B & F in Maths = 14% of 150 = 21
Total difference = 21 + 3 = 24

10)The marks obtained by E in Geography is what per cent of the marks of the marks obtained by E in Hindi?
a) 45
b) 55
c) 50
d) 60
e) None of these

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Answer c)50