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initially a shopkeeper had n chocolates. a customer bought 10% chocolate from n then another customer bought 20% of the remaining chocolates after that one more customer purchased 25% of the remaining chocolates. finally shopkeeper is left with 270 chocolates in his shop. how many chocolates were there initially in his shop? |
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Answer» Initially = N CHOCOLATES After CUSTOMER bought 10% 0.1 x n = 0.1n n - 0.1n = 0.9n After customer bought 25% of the remaining 0.25 x 0.9n = 0.225n 0.9n - 0.225n = 0.675n There were 270 chocolates left 0.675n = 270 n = 270 ÷ 0.675 n = 400 Answer: There were initially 400 chocolates in his SHOP. |
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