Aptitude - Arithmetical Ability

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25.

The smallest number which on adding 17 to it is exactly divisible by 32, 48 and 72                        


A. 270 B. 271
C. 281 D. None of these




26.

The greatest 5 digits number which is exactly divisible by 8, 12, 24 and 36 is                        


A. 99936 B. 93536
C. 98836 D. 12936




27.

The least number, which when divided by 12, 15, 20 and 54 leaves in each case a remainder of 8 is:                        


A. 504 B. 536
C. 544 D. 548




28.

The least number which is a perfect square and is divisible by each of the numbers 16, 20 and 24, is:                        


A. 1600 B. 3600
C. 6400 D. 14400




29.

Six bells commence tolling together and toll at intervals of 2, 4, 6, 8 10 and 12 seconds respectively. In 30 minutes, how many times do they toll together ?                        


A. 4 B. 10
C. 15 D. 16




30.

The product of two numbers is 4107. If the H.C.F. of these numbers is 37, then the greater number is:                        


A. 101 B. 107
C. 111 D. 185




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