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75 gm of sugar solution has 30% sugar in it. Then the quantity of sugar that should be added to the solution to make the quantity of the sugar 70% in the solution, is
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- 125 gm
- 100 gm
- 120 gm
- 130 gm
Correct Option: B
| Sugar in original solution = | = 22.5 gm | 100 |
Let m gm of sugar be mixed.
| ∴ | × 100 = 70 | 75 + m |
⇒ 2250 + 100m = 75 × 70 + 70m
⇒ 2250 + 100m = 5250 + 70m
⇒ 30m = 5250 – 2250 = 3000
| ⇒ m = | = 100 gm | 30 |
