The diameter of a closed cylindrical water tank is 1.2 m and its height is 70 m. Water is pouring into the tank at the rate of 30 litres per minute. Find the number of hours to fill the tank.
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Answer:
2.64min or 0.44 hr
Step-by-step explanation:
d=1.2
r=0.6m
h=70m
then the volume of tank= πr²h
=(22/7)*0.6*0.6*70
=22*0.6*0.6*10= 79.2L
30L in 1 min
then, 1L in 1/30 min
therefore, 79.2L in 79.2/30= 2.64min = 0.044hr
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