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20% of the commodity is sold at 25% profit, 10% at 40% profit and remainder at 30% profit. If a profit of Rs. 180 is earned. Find the value of commodity1. Rs. 1,0002. Rs. 5003. Rs. 6004. Can’t be determined |
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Answer» Correct Answer - Option 3 : Rs. 600 Given: Percent profit on 20% of commodity = 25% Percent profit on 10% of commodity = 40% Percent profit on 70% of commodity = 30% Total profit = 180 Concept used: Percent profit / loss = (profit / loss) / C.P × 100 Calculation: Profit and loss is always calculated on C.P Let value of the commodity = Rs. X C.P of 20% of it = 20% of X = X / 5 C.P of 10% of it = 10% of X = X / 10 C.P of 70% of it = 70% of X = 7X / 10 Profit on selling 20% of it = 25% of X / 5 = X / 20, Similarly, profit on 10% = 40% of X / 10 = X / 25 And profit on 70% = 30% of 7X / 10 = 21X / 100 Total profit = X / 20 + X / 25 + 21X / 100 = 30X / 100 ∵ 30X / 100 = 180 ⇒ X = 180 × 100 / 30 = 600 Therefore, value of the commodity = Rs.600 |
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