Question

determine the largest 3 - digit number exactly divisible by 10, 15 and 18​

Answer 1

Answer:

LCM of 9,15and 18 is 90

The largest three-digit number = 999

We have 999 ÷ 90

= Q= 99,R= 9

Since the remainder is 9,so,if we subtract 9 from 999,we get the largest three-digit number divisible by 9,15 and 18,i.e.,999-9= 990.

Hence, the required number is 990.