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A tap can fill a tank in 6 hours. After half the tank is filled, three more similar taps are opened. What is the total time taken to fill the tank completely?
A tap can fill a tank in 6 hours. After half the tank is filled, three more similar taps are opened. What is the total time taken to fill the tank completely?
Updated On: Nov 12, 2024
- 4 hours
- 5 hours
- 3 hours 30 minutes
- 3 hours 45 minutes
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The Correct Option is D
Solution and Explanation
The first tap fills half the tank in 3 hours. After that, four taps are opened, so the remaining half is filled at four times the rate: Time to fill the remaining half = $\frac{3}{4} = 0.75$ hours. Total time = 3 + 0.75 = 3.75 hours = 3 hours 45 minutes.
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