In a test a candidate attempted only 8 Questions and secured 50% marks in each of the questions if the 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: B. 10
- A. 8
- B. 10
- C. 15
- D. 16Educational Resources
Explanation
Attempting 8 questions at 50% gives marks equal to 8 × 50% = 4 full-question marks. If this is 40% of the total test, then 4 ÷ total questions = 0.40, so total questions = 4 ÷ 0.40 = 10 questions. The likely mistake is choosing 8 because it is the number attempted, without converting the 50% marks into an equivalent number of full questions.
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Percentages express a quantity as parts per hundred and support calculations involving increases, decreases, discounts, commissions, taxes, and successive changes. Questions require distinguishing percentage change from percentage points and identifying the original value when a final value and its percentage change are given.
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