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How many kilogram sugar of costing Rs. 9 per kg must be mixed with 27 kg of sugar costing Rs. 7 per kg so that there may be a gain of 10% by selling the mixture at Rs. 9.24 per kg ? | |
A. | 36 kg [Wrong Answer] |
B. | 42 kg [Wrong Answer] |
C. | 54 kg [Wrong Answer] |
D. | 63 kg [Correct Answer] |