SSC CGL 2022 PYQ — Question 66

SSC CGL - 13 April 2022 - Shift 2 • Quantitative Aptitude • Q66

A and B are two prime numbers such that A > B and their LCM is 209. The value of B2 - A is:

Show answer & explanation

Correct answer: B

Explanation

The correct answer is option 2 i.e. 102

LCM of the two numbers = 209

So, the prime factors of the number = 19 × 11 

We have given A > B, So A = 19 and B = 11

B2 - A = 121 - 19 = 102