A hemispherical tank full of water is emptied by a pipe at the rate of 3 4/7 liters per sec. how much time will it take to empty half the tank ,if it is 3m in diameter?
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Ananya1993:
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Volume of hemisphere= 2/3 πr³ = 2/3 ×22/7 × (3/2)³ = 9/4 × 22/7 = 99/14 m³= 99/14 ×10³L
25/7 L is emptied in 1 sec
99/14×1/2×10³ is emptied in 7/25 × 99/14 ×1/2 ×10³= 99/100 × 10³ = 990sec= 990/60 minutes = 16.5 minutes
25/7 L is emptied in 1 sec
99/14×1/2×10³ is emptied in 7/25 × 99/14 ×1/2 ×10³= 99/100 × 10³ = 990sec= 990/60 minutes = 16.5 minutes
Its wrong
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