SSC Selection Post 2022 PYQ — Question 62

SSC Selection Post - Matriculation Level - 10 Feb 2022 - Shift 1 • Quantitative Aptitude • Q62

In a test consisting of 80 questions, Anita answered 60% of the first 55 questions correctly. What percentage of the remaining questions should she answer correctly to obtain 70% in the entire exam?

Show answer & explanation

Correct answer: B

Explanation

The correct answer is Option 2 i.e. 92%.

Total questions = 80

She needs 70% correct = 70100×80{70\over100}\times80 = 56 correct answers

For 55 questions, 60% correct = 60100×55{60\over100}\times55 = 33 correct

Remaining questions = 80 − 55 = 25

She needs = 56 - 33 = 23 correct

Required % = 232523\over25 × 100 = 92%