Question

Find the greatest number of 4 digits which is divisible by 15, 25, 40 ,75.
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Answer 1

Step-by-step explanation:

Since the 4-digit number is divisible by 15, 25, 40 and 75. So, the number must be divisible by LCM( 15, 25, 40 ,75)=600.

The greatest 4-digit number in number system is 9999.

So, the required number=9999-399=9600

Answer 2

Answer:

Step-by-step explanation:

Greatest number of 4-digits is 9999.

L.C.M. of 15, 25, 40 and 75 is 600.

On dividing 9999 by 600, the remainder is 399.

∴ Required number (9999 - 399) = 9600