SSC CPO 2023 PYQ — Question 146

SSC CPO - 05 Oct 2023 - Shift 1 • Quantitative Aptitude • Q146

Three numbers are in the ratio of 5 : 7 : 9 and their LCM is 34,650. Their HCF is:

Show answer & explanation

Correct answer: C

Explanation

The correct answer is option 3 i.e. 110.

Given that

Three numbers are in the ratio of 5 : 7 : 9 and their LCM is 34,650

Let These numbers be 5x, 7x, and 9x

LCM = 36450

5x × 7x × 9x = 34650

315x = 34650

x = 110

Hence, the HCF of these numbers is x = 110