UP Police Constable Exam Model Paper 4

LCM of 15, 25, 30 and 45 is = 2 × 3 × 3 × 5 × 5 = 450
The greatest number of four digits is = 9999
When 9999 is divided by 450, Remainder = 99
∴ Required number = 9999 - 99 = 9900