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Question

In container P, there is 90 litres of milk and in container Q there is 50 litres of water. 35% of milk and 70% of water is taken out from the respective containers and are mixed in container R. How much water should be added to container R such that the ratio of milk to water becomes 3:4?

ST

A 7.5 litres

B 4 litres

C 20 litres

D 11 litres

E 7 litres

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