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Find the greatest number of four digits exactly divisible by 15, 25, 30 and 45.
Question

Find the greatest number of four digits exactly divisible by 15, 25, 30 and 45.

A.

9000

B.

9600

C.

9400

D.

9900

Correct option is D


Four digits greatest number = 9999
LCM of 15, 25, 30 and 45

When we divided 9999 by 450 leaves remainder = 99
Therefore, the greatest number of four digits which exactly divisible by 15, 25, 30 and 45 = 9999-99 = 9900

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