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What is the least number by which when 8640 is divided so that quotient is a complete cube number?


A) 6

B) 7

C) 5

D) 8

Correct Answer:
C) 5

Description for Correct answer:

8640 = (2 X 2 X 2) X (2 X 2 X 2) X ( 3 X 3 X 3) X 5

It is clear that if 8640 is divided by 5, then quotient will be a perfect cube.


Part of solved Number System questions and answers : >> Aptitude >> Number System




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