A candidate attempted 75% of the questions in an exam. He got 80% of the attempted ones correct, and 10% of the unattempted ones were also awarded marks due to grace. If the total number of questions is 200, how many did he get right?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 125.
Total questions = 200
Attempted = 75/100 × 200 = 150
Unattempted = 50
Correct attempts = 80/100 × 150 = 120
Grace marks = 0.1 × 50 = 5
Total correct = 120 + 5 = 125