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| In a construction site, there are two pumps filling water in a tank. |
| There is third pump draining water from the tank and fulfilling needs at construction. |
| The first pump alone can fill the tank in 5 hours. The second pump alone can fill the tank in 7.5 hours. |
| The third pump alone can drain the tank in 3 hours. |
| Initially water level was at 10ft, exactly half way in the tank. |
| If both first and second pumps are filling at the same time and the third pump also starts draining the tank, |
| what is the water level in the tank after 2 hours? |
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