Question

What is the least amount that a person can have, such that when he distributes it into groups of rs.16 or rs.18 or rs.20 or rs.25, he is always left with rs.4?

Answer 1

Here the smallest amount is RS 16
the person is left with Rs 4
total money = 4 + 16
= RS 20

Answer 2

The of given amount = LCM (16,18,20,25) =3600

And, he left with Rs. 4.

Hence, the required amount is 3600 + 4 = 3604.