External dimensions of a closed wooden box are in the ratio 5:4:3. If the cost of painting its outer surface at the rate of Rs 5 per `dm^2` is Rs 11,750, find the dimensions of the box.

Options

A. 25dm, 20 dm, 15 dm
B. 22 dm, 17 dm, 12 dm
C. 27 dm, 22 dm,17 dm
D. None of these

Answer

A