In a mixture of milk and water the proportion of water by weight was 75%. If in 60 gm of mixture 15 gm water was added, what would be the percentage of water ? (Weight in gm)

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BANK PO Exam (Indian Overseas Bank) 2009 click here to view all questions

In a mixture of milk and water the proportion of water by weight was 75%. If in 60 gm of mixture 15 gm water was added, what would be the percentage of water ? (Weight in gm)

A 80%

B70%

C75%

D 62%

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Correct answer is: 80% Explanation: Water in 60 gm mixture= $60 \times \frac{75}{100}$ = 45 gm. and Milk = 15 gm. After adding 15 gm. of water in mixture, total water = 45 + 15 = 60 gm and weight of a mixture = 60 + 15 = 75 gm. So % of water = $100 \times \frac{60}{75}$ = 80% Nithin ? answered undefined All Comments

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