UPSC CAPF Assistant Commandant Model Paper 7

Given
Total Questions = 200
40% of the first 120 questions are answered correctly.
Correction percentage in entire test = 60%
Calculation
Let x% of the remaining 80 questions are correct.
Hence,
40% of 120 + x% of 80 = 60% of 200
⇒ 48 + 80 × (x/100) = 120
⇒ 4x/5 = 72
⇒ x = 90