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in Surface Areas And Volumes by (29.9k points)
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The cost of painting the whole surface area of a cube at the rate of is 10 paise per cm2Rs. 264.60. Then, the volume of the cube is 

A. 6859 cm3 

B. 9261 cm3 

C. 8000 cm3 

D. 10648 cm3

1 Answer

+1 vote
by (30.3k points)
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Best answer

Let the side of cube be ‘a’ 

Hence total surface area of cube = 6a2 

Cost of painting the cube = 6a2 × 10 

264.6 = 60 a2

a2\(\frac{264.6}{60}\)

a2 = 4.41 

a = 2.1 

Hence, 

Volume of the cube = a3 

= (2.1)3 

= 9.261 cm3 

Hence, option B is correct

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