There is a milk sample with 50% water in it.If 1/3rd of this milk is a

1.	There is a milk sample with 50% water in it.If 1/3rd of this milk is added to equal amount of pure milk, then water in the new mixture will fall down to (a) 25% (b) 30% (c) 35% (d) 40%
Answer» Correct option (a) 25% Explanation: Percentage of milk in milk sample = 50% It is added to equal amount of pure milk, i.e. in the ratio of 1:1 Note: The information that 1/3rd of the milk sample is mixed is useless. Let 100 lt of milk sample is mixed with 100 lt of pure milk. Water in milk sample = 50 lt Percentage of water in the new mixture = [50/(100 + 100)] × 100 = (50/200) × 100 = 25%.

There is a milk sample with 50% water in it.If 1/3rd of this milk is added to equal amount of pure milk, then water in the new mixture will fall down to (a) 25% (b) 30% (c) 35% (d) 40%

Answer»

Correct option (a) 25%

Explanation:

Percentage of milk in milk sample = 50%

It is added to equal amount of pure milk, i.e. in the ratio of 1:1

Note: The information that 1/3rd of the milk sample is mixed is useless.

Let 100 lt of milk sample is mixed with 100 lt of pure milk. Water in milk sample = 50 lt

Percentage of water in the new mixture = [50/(100 + 100)] × 100 = (50/200) × 100 = 25%.

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There is a milk sample with 50% water in it.If 1/3rd of this milk is added to equal amount of pure milk, then water in the new mixture will fall down to (a) 25% (b) 30% (c) 35% (d) 40%

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