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The expenses on wheat, meat andvegetables of a family are in the ratio12: 17 3. The prices of these articlesare increased by 20%, 30% and 50%,respectively. The total expenses of thefamily on these articles are increased by(a) 22-96(b) 28-963(c) 27-96(d) 252%8 |
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Answer» Let their expenses on wheat, meat and vegetables are 12x, 17x and 3x respectively.Total expenses = 12x + 17x + 3x = 32xNow increased price,Wheat = 12x + 20% of 12x = 14.4x.Meat = 17x + 30% of 17x = 22.1xVegetables = 3x + 50% of 3x = 4.5xTotal expenses = 14.4x + 22.1x + 4.5x = 41x.Increased = 41x - 32x = 9xPercentage increased = (9x * 100)/32x = 28(1/8)%. Let their expenses on wheat, meat and vegetables are 12x, 17x and 3x respectively.Total expenses = 12x + 17x + 3x = 32xNow increased price,Wheat = 12x + 20% of 12x = 14.4x.Meat = 17x + 30% of 17x = 22.1xVegetables = 3x + 50% of 3x = 4.5xTotal expenses = 14.4x + 22.1x + 4.5x = 41x.Increased = 41x - 32x = 9xPercentage increased = (9x * 100)/32x = 28(1/8)%. |
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