Question

Which of the following pairs has 30 as their LCM?

Options

• 5 and 10

• 6 and 10

• 3 and 6

• 4 and 8

Answer 1

6 and 10

Explanation:

1. List a few multiples of the first number.
   → 6, 12, 18, 24, 30, 36...

2. Multiple of the second number.
   → 10, 20, 30, 40...

LCM is 30