What is the correct answer?

4

A. 9999

B. 9988

C. 9872

D. 9720

The Largest number of four digits is 9999.

Required number must be divisible by L.C.M. of 12,15,18,27 i= 540.

On dividing 9999 by 540,we get 279 as remainder .

Required number = (9999-279) = 9720.