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Volumes Practice Test 4
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© examsnet.com
Question : 1
Total: 16
A tank is of the shape of a cuboid whose length is 7.2 m and breadth is 2.5m. Water flows into it through a pipe whose cross-section is 5 cm × 3 cm at the rate of 10 m/s. Find the height to which water level will rise in the tank in 40 minutes.
1m
2m
3m
4m
Validate
Solution:
Here, length of water column in 40 min = 10 × 40 × 60 m
Since, 7.2 × 2.5 × h =
5
100
×
3
100
×
10
×
40
×
60
⇒ h =
36
×
100
72
×
25
= 2m
© examsnet.com
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