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Directions (Q91-Q95): In the following questions, determine which statement or statements are redundant for finding the answer to the given question, or can be dispensed with. Q91. A trader sells a homogeneous mixture of A and B at the rate of Rs. 32 per kg. What is the profit earned by the trader? (I) He bought B at the rate of Rs. 29 per kg. (II) He bought 1 kg of A at Rs. 8 higher than the rate of B per kg. (III) He bought A at the rate of Rs. 34 per kg.

1. Only I and II
2. Only I and III
3. I, II and III together are not sufficient
4. Either (a) or (b)
5. Any two of these

Correct answer: I, II and III together are not sufficient

Solution

The selling price is given, but the cost price of the homogeneous mixture depends on the prices and proportion of A and B. Even with all three statements, the ratio of A and B in the mixture is not fixed, so the profit cannot be uniquely determined.

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