The cost of the paint is Rs.36.50 per kg. If 1 kg of paint covers 16 square feet, how much will it cost to paint outside of a cube having 8 feet each side?

Rs.692

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Rs.768

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Rs.876

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Rs.972

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None of these

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Solution

The correct option is C
Rs.876

Surface are of the cube = (6 $\times$ 8 $^{2}$ ) sq. ft. = 384 sq. ft. Quantity of paint required $= (\frac{384}{16})$ kg = 24 kg $∴$ Cost of painting = Rs. (36.50 $\times$ 24) = Rs.876

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The cost of the paint is Rs.36.50 per kg. If 1 kg of paint covers 16 square feet, how much will it cost to paint outside of a cube having 8 feet each side?

The correct option is C Rs.876 Surface are of the cube = (6 ×82) sq. ft. = 384 sq. ft. Quantity of paint required =(38416)kg = 24 kg ∴ Cost of painting = Rs. (36.50 ×24) = Rs.876

The correct option is C
Rs.876

Surface are of the cube = (6 $\times$ 8 $^{2}$ ) sq. ft. = 384 sq. ft. Quantity of paint required $= (\frac{384}{16})$ kg = 24 kg $∴$ Cost of painting = Rs. (36.50 $\times$ 24) = Rs.876