## Aptitude Volume and Surface Area Test Paper 11) The surface area of a cube is 600 cm2. The length of its diagonal is - cm
- cm
- 10 cm
- 10 cm
Surface area of cube = 6 a 2) The length of the longest rod that can be placed in a room 30 m long, 24 m broad and 18 m high, is - 30 m
- 15 m
- 30 m
- 60 m
Length of room = 30 m 3) The dimensions of a hall are 40 m, 25 m and 20 m. If each person requires 200 cubic meters, find the number of persons who can be accommodated in the hall. - 150
- 140
- 120
- 100
Length of the hall = 40 m 4) 4 cubes each of 6 cm - 48 cm
^{2} - 40 cm
^{2} - 36 cm
^{2} - 32 cm
^{2}
Total surface area of parallelepiped = total surface area of 4 cubes + Surface area of another cube 5) A water tank is 30 m long, 20 m wide and 12 m deep. It is made of iron sheet which is 3 m wide. The tank is open at the top. If the cost of iron sheet is Rs. 10 per meter, what is the total cost of iron sheet required to build the tank? - Rs. 6000
- Rs. 8000
- Rs. 9000
- Rs. 10,000
Length of water tank = 30 m Area of water tank = 2(lb+bh +hl) - lb = 2 (30 x 20 + 20 x 12 + 12 x 30) - 30 x 20 Area of iron sheet (L*B) = area of tank = 1800 m L * B = 1800 So, the total cost of iron sheet to build the tank = 10 x 600 = Rs. 6000 Aptitude Volume and Surface Area Test Paper 2 Aptitude Volume and Surface Area Test Paper 3 Aptitude Volume and Surface Area Test Paper 4 Aptitude Volume and Surface Area Test Paper 5 |

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