1000+ Silicon Valley Bank Aptitude Test Questions and Answers Pdf - 1

Question: 1

The L.C.M. of two numbers is 14560 and their H.C.F. is 13. If one of them is 416, then the other is

(A) 450

(B) 455

(C) 460

(D) 470

Ans: B

$${14560 × 13} / {416}$$ = 455.

Question: 2

The sum of two numbers is 2000 and their L.C.M. is 21879. The two numbers are

(A) 1987, 13

(B) 1989, 11

(C) 1991, 9

(D) 1993, 7

Ans: B

From the given choices we can see that L.C.M. of 1989 and 11 is 21879.

Therefore, required numbers are 1989, 11.

Question: 3

Philip, Tom and Brad start jogging around a circular field and complete a single round in 18 seconds, 22 seconds and 30 seconds respectively. In how much time, will they meet again at the starting point?

(A) 3 minutes 15 seconds

(B) 12 minutes

(C) 21 minutes

(D) 16 minutes 30 seconds

Ans: D

The L.C.M. of 18, 22, 30 is 990.

So, they will meet each other after 990, i.e., 16 minutes and 30 seconds.

Question: 4

Find the L.C.M. of $${2}/{5}$$,$${3}/{10}$$ and $${6}/{25}$$.

(A) $${2}/{5}$$

(B) $${6}/{5}$$

(C) $${7}/{2}$$

(D) $${12}/{5}$$

Ans: B

L.C.M. of numerators 2, 3 and 6 is 6.

H.C.F. of denominators 5, 10 and 25 is 5.

∴ Required L.C.M. = $${L.C.M. of Numerators} / {H.C.F. of Denominators}$$ = $${6}/{5}$$.

Question: 5

Three friends A, B and C start running around a circular stadium and complete a single round in 24 seconds, 36 seconds and 30 seconds respectively. After how many minutes will they meet again at the starting point?

(A) 6

(B) 8

(C) 120

(D) 15

Ans: A

24 = 2 × 2 × 2 × 3

36 = 2 × 2 × 3 × 3

30 = 2 × 3 × 5

L.C.M. = 2 x 2 x 2 x 3 x 3 x 5 = 360

Hence, all three friends will meet again after 360 seconds

i.e., $${360}/{60}$$ = 6 minutes.

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