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In 40 litres mixture of milk and water the ratio of milk to water is 7 : 1. In order to make the ratio of milk and water 3 : 1, the quantity of water (in litres) that should be added to the mixture will be
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- 6
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6 1 2 -
6 2 3 -
6 3 4
Correct Option: C
In 40 litres mixture,
Quantity of milk
| = | × 40 = 35 litres | |
| 8 |
Quantity of water = 5 litres
Let x litres of water be mixed
| ∴ | = | ||
| 5 + x | 1 |
⇒ 3x + 15 = 35
⇒ 3x = 20
| ⇒ x = | = 6 | litres | ||
| 3 | 3 |
