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the cost of 5 kg of sugar and 7 kg of rice is rupees 153 and the cost of 7 kg of sugar and 5kg of rice is rupees 147 find the cost of 6 kg of sugar and 10 kg of rice |
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Answer» let 1 kg sugar be x , and 1 kg rice be y 5x+7y = 153 12 x + 12Y = 153 + 147 12x + 12y = 300 x + 12y = 300/12 x + 12 y = 25 x + y = 25/12 x+y = 2.5 price of 6 kg sugar and 10 kg rice = 2.5 * 6 * 10 = 150 |
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