SSC CHSL 2021 PYQ — Question 54

SSC CHSL - 4 Aug 2021 - Shift 3 • Quantitative Aptitude • Q54

When (224 - 1) is divided by 7, then the remainder is:

Show answer & explanation

Correct answer: C

Explanation

The correct answer is option 3 i.e. 0.

(224 - 1)/7 = [(23)8 - 8]/7

= (88 - 1)/7

= 88 /7 - 1/7

= (1 - 1)/7 = 0 remainder