Dashen Bank Aptitude Test Questions & Answers - 1

Question: 1

Find the least number which when divided by 12, 16 and 18, will leave in each case a remainder 5.

(A) 130

(B) 140

(D) 169

View Answer

Ans: C

The required smallest number

= (L.C.M. of 12, 16 and 18) + 5

= 144 + 5 = 149.

Question: 2

There are five bells which start ringing together at intervals of 3, 6, 9, 12 and 15 seconds respectively. In 36 minutes, how many times will the bells ring simultaneously?

(A) 5

(B) 6

(D) 13

View Answer

Ans: D

L.C.M. of 3, 6, 9, 12 and 15 = 180 seconds

∴ Required answer

= $${36 × 60} / {180} + 1$$ = 12 + 1 = 13.

Question: 3

The sum of two numbers is 216 and their H.C.F. is 27. The numbers are

(A) 27, 189

(B) 54, 162

(D) None of these

View Answer

Ans: A

Let the numbers be 27a and 27 b.

Then, 27a + 27b = 216 or 27(a + b) = 216

or, a + b = $${216}/ {27}$$ = 8

∴ Values of co-primes (with sum 8) are (1, 7) and (3, 5)

So, the numbers are (27 × 1, 27 × 7) i.e., (27, 189)

Question: 4

Find the side of the largest square slabs which can be paved on the floor of a room 5 m 44 cm long and 3 m 74 cm broad.

(A) 34

(B) 38

(D) 56

View Answer

Ans: A

The side of the square slab is the H.C.F. of 544 and 374 cm i.e.. 34.

Question: 5

Find the LCM of 0.72, 0.64 and 0.968.

(A) 696.96

(B) 742.42

(D) 966.96

View Answer

Ans: A

The given numbers are equivalent to 0.720, 0.640 and 0.968

The LCM of 720, 640 and 968 = 696960

∴ LCM of 0.720, 0.640 and 0.968 = 696.96.

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Dashen Bank Aptitude Test Questions & Answers - 1

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