SSC CPO 2023 PYQ — Question 136

SSC CPO - 05 Oct 2023 - Shift 2 • Quantitative Aptitude • Q136

Find the LCM of 20, 30, 45 and 65.

Show answer & explanation

Correct answer: B

Explanation

The correct answer is option 2 i.e. 2340.

Given that

LCM of 20, 30, 45, and 65.

⇒ 20 = 22 × 5

⇒ 30 = 2 × 3 × 5

⇒ 45 = 32 × 5

⇒ 65 = 5 × 13

So,

⇒ LCM = 22 × 32 × 5 × 13 = 2340