Question 47.If group B contains 23 questions, then how many questions are there in group C?

(a) 1

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(b) 2

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(d) Cannot be determined

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Solution

The correct option is A
(a) 1

(a)

Explanation:

A + B + C = 100 (total number of questions)

Total marks = A + 2B + 3C

B = 23

Check by options

C = 1, B = 23, A = 76

A = 76 questions ⇒ 76 marks

A + 2B + 3C = 76 + 46 + 3 = 125
60% of total = 12.5 × 6 = 75, which satisfies option (A).

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