Question

Find the least 5 digit number which is exactly divisible by 20 25 30

Answer 1

20 ,25 ,30
The LCM is 300 .But what you need is 5 digit number. Just scale this 300 up until the number of digits reaches 5.
3000 , 9000, 9900 and 10200 That's it.
10200 is your answer.

Answer 2

10200. . . .......... ...