1.

Find the number of two digit common multiples of 3 and 5.1. 302. 193. 64. 7

Answer» Correct Answer - Option 3 : 6

Given:

Numbers are 3 and 5.

Concept used:

Firstly find LCM of (3, 5), then find its two digit multiples.

Explanation:

LCM of (3, 5) = 15

Two digit multiples of 15 are 15, 30, 45, 60, 75, 90.

∴ The number of two digit common multiples of 3 and 5 are 6.

 



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