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Ratio of milk to water in container M is 12:13 and the ratio of milk to water in container N is 7:4. If containers M and N are mixed in container O (equal volumes), find the ratio of milk to water in container O.

1. 187:07:00
2. None of these
3. 200:13:00
4. 186:03:00

Correct answer: None of these

Solution

Taking 1 unit each of M and N: milk from M=12/25, milk from N=7/11. Total milk=(132+175)/275=307/275. Total water=(143+100)/275=243/275. Ratio=307:243 — none of the listed options match.

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