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A welder received an order to make a cube shaped tank with capacity of
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11 May 2021, 07:22
11 May 2021, 07:22
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A welder received an order to make a cube shaped tank with capacity of 1 million litre. If he has only 4 x 2 meter sheets of metal that can be cut, how many metal sheets will be required for this order? (1 \(m^3\) = 1,000 litres)
A. 92
B. 90
C. 82
D. 78
E. 75
A. 92
B. 90
C. 82
D. 78
E. 75
Re: A welder received an order to make a cube shaped tank with capacity of
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11 May 2021, 22:21
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Re: A welder received an order to make a cube shaped tank with capacity of
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16 Mar 2023, 17:44
16 Mar 2023, 17:44
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Expert Reply
KarunMendiratta wrote:
A welder received an order to make a cube shaped tank with capacity of 1 million litre. If he has only 4 x 2 meter sheets of metal that can be cut, how many metal sheets will be required for this order? (1 \(m^3\) = 1,000 litres)
A. 92
B. 90
C. 82
D. 78
E. 75
A. 92
B. 90
C. 82
D. 78
E. 75
Since 1,000 liters = 1 cubic meter, then 1,000,000 liters = 1,000 cubic meters. Therefore, a 1 million liter cube is a 1,000 cubic meter cube. Such a cube will have an edge length of 10 meters and a surface area of 6 x 10^2 = 600 square meters. Since each sheet of metal is 4 x 2 = 8 square meters, we need 600/8 = 75 such sheets to construct (the surface) of the cube-shaped tank.
Answer: E
