Question

Ronna has volleyball practice every 4 days. Ronna also has violin lessons every 10 days. She has both activities today after school. When will she have both activities again on the same day?

Answer 1

She have both activities again on 20th day from now.

Explanation:

Given :Ronna has volleyball practice every 4 days

Ronna also has violin lessons every 10 days.

To Find : When will she have both activities again on the same day?

Solution:

We will find the LCM of 4 and 10

2 | 4 ,10

2 | 2 , 5

5 | 1 , 5

| 1 , 1

So,
`LCM = 2* 2 * 5`

`LCM =20`

Hence she have both activities again on 20th day from now.