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The ratio of the volume of water and glycerine in 240cc of a mixture is 1 : 3. The quantity of water (in cc) that should be added to the mixture so that the new ratio of the volumes of water and glycerine becomes 2:3 is
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- 55 cc
- 60 cc
- 62.5 cc
- 64 cc
Correct Option: B
In the original mixture, water = 60 cc
Glycerine = 180 cc
Let x cc of water be mixed.
| ∴ | = | ||
| 180 | 3 |
⇒ 180 + 3x = 360
⇒ 3x = 360 – 180 = 180
| ∴ x = | = 60 cc | |
| 3 |
