Question

Volume and Surface Area of Solids
229
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?​

Answer 1

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