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Jugnu, a dishonest milk seller has certain quantity of milk to sell. Find the approximate ratio he should mix water to gain 5% by selling the mixture at the cost price?1). 1 : 102). 1 : 53). 1 : 254). 1 : 20 |
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Answer» Let Cost PRICE of 100 g milk was 100 UNITS, Let’s ASSUME that X grams of milk are mixed with (100 – x) grams of WATER. x + 5% of x = 100 ⇒ x + 0.05x = 100 ⇒ 1.05x = 100 ⇒ x = 100/1.05 = 2000/21 |
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