The greatest number of four digits which is divisible by 15, 25, 40 and 75 is:
Answer: C
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,
\((9999 - 399) = 9600\)