Question

find the least number of stones so that help of 15,20 and 30 stones can be made​

Answer 1

║⊕ANSWER⊕║

The Required Least number of stones is the LCM ( Lowest common Multiple ) of 15 , 20 and 30

We find LCM by prime factorization method,

15 = 3 × 5

20 = 2 × 2 × 5

30 = 2 × 3 × 5

So, LCM = 5 × 2 × 3 × 2 = 60

Therefore, The required Least number of stones is 60.