CSATTime & WorkPercentage Arithmetic2015

In a test, a candidate attempted only 8 questions and secured 50% marks in each of the questions. If he obtained a total of 40% in the test and all questions in the test carried equal marks, how many questions were there in the test?

Correct Answer: Option B

Explanation

This is a classic percentage question. Instead of getting tangled in algebra with 'x' and 'y', I'll use a simple trick that is very common in these exams:

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