A hemispherical tank full of water is emptied by a pipe at therate of 3
4
7
litres per second. How much time will it take to
empty half the tank, if it is 3m in diameter?(take π=
22
7
)
Answers
Answered by
0
Answer:
16.5
Step-by-step explanation:
r=d/2=3/2m
=2/3×22/7×(3/2)3
2/3×22/7×3/2 ×3/2× 3/2
=99/14m3
99/14×1000liter
99000/14
1/2×99000/14
99000/28
25/7
25/7=1 liter
25/7=25/1
99000/28liter=7/25×99000/28=990
990/60 minutes=16.5 min
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