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The edge of a cube is decreasing at the rate of 0.04 cm/sec. If the edge of cube is 10 cm, then the rate of decrease of its surface area is

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The edge of a cube is decreasing at the rate of 0.04 cm/sec. If the edge of cube is 10 cm, then the rate of decrease of its surface area is
A. `0.6 cm^(2)//sec`
B. `1.2 cm^(2)//sec`
C. `2.4 cm^(2)//sec`
D. `4.8 cm^(2)//sec`
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Correct Answer - D
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