A person bought 76 cows and sold 20 cows at 15% profit, 40 cows at 19% profit and remaining 16 cows at 25% profit and got a profit of Rs. 6570 as a whole. The cost price of each cow is ?->(Show Answer!)

1. A person bought 76 cows and sold 20 cows at 15% profit, 40 cows at 19% profit and remaining 16 cows at 25% profit and got a profit of Rs. 6570 as a whole. The cost price of each cow is

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By: anil on 05 May 2019 01.56 am

Let cost price of each cow = $$100x$$ Profit on first 20 cows = 15% => Profit amount = $$frac{15}{100} * 100x * 20 = 300x$$ Profit on next 40 cows = 19% => Profit amount = $$frac{19}{100} * 100x * 40 = 760x$$ Profit on last 16 cows = 25% => Profit amount = $$frac{25}{100} * 100x * 16 = 400x$$ => Total profit = $$300x+760x+400x = 6570$$ => $$x = 4.5$$ Cost price of each cow = 4.5*100 = 450

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