Q.
A. 9000
B. 9400
C. 9600
D. 9800
E. None of the above
Correct choice: C
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.