Respuesta :

Answer:

a. 10,20,30

Step-by-step explanation:

Answer:

Step-by-step explanation:

Use this this will help you do LCM https://www.calculatorsoup.com/calculators/math/lcm.php

The LCM of those numbers are 60

So let’s try them all out.

Using the calculator

We are trying to get 60

So the answer is A.10,20,30