Question

Assume one kg of paint costs 60 rupees. If one kg paint covers 15 squarefeet, how much will it cost to paint outside of a cube having 10 feet each side?

• A. 2300
• B. 2350
• C. 2400
• D. 2450

Answer 1

The Correct Option is A

Surface Area of Cube = 6 × Sides²

= 6 × 10²

= 6  × 100

= 600

\(\text{Paint required} = \frac{\text{Surface Area Of Cube}}{\text{1 kg paint Area}}\)

= \(\text{Paint required} = \frac{600}{15}\)

\(Paint Required\) = \(40 kg\)

Cost Of Paint = \(40 kg \times 60 \frac{rupees}{kg}\)

= 2400 rupees

The correct option is (C): 2400