Question

On every 3rd day Ivan goes to the gym to exercise. Every 5th day Gavin goes to the gym to exercise. Whtis the first day Ivan and Gavin will go to the gym at the same time?

Answer 1

On the 15th day they will go the least number both go into is 15

Answer 2

Ivan and Gavin will meet 15th day.

Explanation:

Given:

On every 3rd Ivan goes to gym and every 5th day Gavin goes to the gym.

We need to find when Ivan and Gavin will go the gym at the same time.

Here we need to find the Least Common Multiple (LCM) of 3 and 5.

3 = 1 * 3

5 = 1 * 5

LCM of 3 and 5 is 1*3*5 = 15

So, Ivan and Gavin will meet 15th day.