Question: please answer this, with answer and solution. thank you 3. A water tank is emptied through two drains in 50 minutes. If only the larger

please answer this, with answer and solution. thank you

3. A water tank is emptied through two drains in 50 minutes. If only the larger drain is used, the tank will be empty in 85 minutes. How long would it take to empty if only the smaller drain is used

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