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3/4 part of a tank is full of water.. When 30 litres of water is taken out, the tank becomes empty. The capacity of the tank is
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- 36 litres
- 42 litres
- 40 litres
- 38 litres
- 36 litres
Correct Option: C
Let the capacity of the tank be q litres.
According to the question,
| = 30 | |
| 4 |
⇒ 3q = 30 × 4
| ⇒ q = | = 40 litres | |
| 3 |
