SSC CGL 2021 PYQ — Question 53

SSC CGL - 16 Aug 2021 - Shift 3 • Quantitative Aptitude • Q53

Find the difference between square of the greatest value and the samllest value of P if the number 5306P2 is divisible by 3.

Show answer & explanation

Correct answer: D

Explanation

The correct answer is option 4 i.e. 60

Given :

5306P2 is divisible by 3

Concept used :

Divisibility rule of 3

Calculations :

5306P2 is divisible by 3 if sum of the digits of 5206P2 is divisible by 3

⇒ 5 + 3 + 0 + 6 + P + 2

⇒ 16 + P

So, minimum value of P can be 2 and 8 as 18 and 24 both are divisible by 3

The difference between square of the greatest value and the samllest value of P

⇒ 82 - 22

⇒ 64 - 4

⇒ 60