If you fail, never give up because FAIL means 'First Attempt In Learning'.— A. P. J. Abdul Kalam

Number System — quick quiz

5 real OD Police PC questions on Number System. Instant scoring and solutions, no signup — see where you stand in ~3 minutes.

Question 1 of 5

HARD

What is the highest common factor (HCF) of 144, 180, and 192?