Volume and Surface Area of Solids
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11. A rectangular water reservoir contains 42000 litres of water. If the length of reservoir is 6 m
and its breadth is 3.5 m, the depth of the reservoir is
(a) 2 m
(b) 5 m
(c) 6 m
(d) 8 m
7
Hint. 6x-xxx1000 = 42000. Find x.
2
12. The dimensions of a room are (10 mx 8 mx 3.3 m). How many men can be accommodated
in this room if each man requires 3 m of space?
Answers
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Step-by-step explanation:
Qno11.
Volume=42000L
Length=6m
Breadth=3.5m
Depth=Volume/Area
=42000/6×3.5
=42000/21
=2000m
As this option is not in your question, so your options are wrong...
The correct answer should be 2000m
Qno12.
Number of men can be accommodated in the room=10m×8m×3.3m/3m×3m×3m
=264m/27m
=9.7men
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