The figure above represents a rectangular tank. How many cubic centimeters of water are in the tank when the water level is 10 centimeters below the top of the tank?

(A) 12,672,000
(B) 13,824,000
(C) 126,720,000
(D) 138,240,000
(E) 1,267,200,000

cubic centimeters of water that are in the tank when the water level is 10 centimeters below the top of the tank
= 1200 * 960 * (120-10)
=12* 96 * 10^3 * 110
=1152*11 * 10^4
=12672 * 10^4

Answer C
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Hi All,

We're told that the figure above represents a rectangular tank (with a length of 1200 cm, a width of 960 cm and a height of 120 cm). We're asked for the number of cubic centimeters of water are in the tank when the water level is 10 centimeters BELOW the top of the tank. This question can be solved with a bit of Arithmetic and some estimation (although you do have to be careful about keeping track of the decimal point).

Since the water level is 10 cm BELOW the top of the tank, the volume of the water is 1200 x 960 x 110. We can 'round up' the 960 to 1000 and 'round down' the 110 to 100, which would give us an approximate volume of (1200)(1000)(100) = 120,000,000. there's only one answer that's close...

Final Answer:

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