Correct Answer - Option 2 : 9600
Given:
Numbers = 15, 25, 24, 80
Calculation:
Greatest number of 4-digits = 9999.
L.C.M of 15, 25, 24 and 80 = 1200.
On dividing 9999 by 1200, the remainder is 399.
Required number = (9999 - 399) = 9600
∴ The greatest number of four digits which is divisible by 15, 25, 24 and 80 is 9600.