18.
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A man mixes two types of rice (X and Y) and sells the mixture at the rate of Rs. 17 per kg. Find his profit percentage.
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I.
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The rate of X is Rs. 20 per kg.
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II.
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The rate of Y is Rs. 13 per kg.
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A.
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I alone sufficient while II alone not sufficient to answer
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B.
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II alone sufficient while I alone not sufficient to answer
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C.
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Either I or II alone sufficient to answer
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D.
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Both I and II are not sufficient to answer
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E.
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Both I and II are necessary to answer
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Answer: Option D
Explanation:
The ratio, in which X and Y are mixed, is not given.
So, both I and II together cannot give the answer.
Correct answer is (D).
