A tank has a capacity to hold 1,00,000litre of water. Pump a can fill this tank in 8 hrs, pump b can fill it in 10 hrs. While pump c can fill it in 12 hrs. The pump man opens all the three pumps at 9 am in the morning but pump a develops a fault at 11 am and has to be put off. The other two pumps fill the remaining tank. Find the time by the watch when the tank will be completely full.
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step by step explain in the image ☺️
answer will be 01:00 pm
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