SSC GD 2021 PYQ — Question 71

SSC GD Constable (English) - 26th November 2021 Shift 3 • Quantitative Aptitude • Q71

If P = a3 × b5 × c11, Q = a8 × b9 × c5, R = a15 × c23, then what is the HCF of P, Q and R?

Show answer & explanation

Correct answer: A

Explanation

The correct answer is option 1 i.e. a3 × c5.

Concept used:

HCF of the numbers

Calculations:

According to the question;

⇒ Factors of P = a3 × b5 × c11

⇒ Factors of Q = a8 × b9 × c5

⇒ Factors of R = a15 × c23

HCF of P, Q and R = a3 × c5