A) 25%

B) 50%

C) 60%

D) 25%

+1 vote

None of them is correct.

Explanation:

1) why can't be 25% : If the answer is 25%, then as we know two out of four answer choices is '25%', the answer has to be 50%.

This is a contradiction, so the answer cannot be 25%.

2) why can't be 50% : If the answer is 50% then because answer:"50%" is 1 out of 4 answer choices, the answer must be 25%. This is also a contradiction. So the answer cannot be 50%.

3) why can't be 60% : same logic

wonderful query and good explanation :)

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