| The ratio of milk and water in a 55 kg mixture is 7: 4. What is the quantity of water that must be added to make the ratio 7: 6? [BSSC (CGL) 2015] |
A) 15 kg
B) 10 kg
C) 5 kg
D) 12 kg
Correct Answer: B
Solution :
| By the rule of alligation, |
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