Question

A toy is in the shape of a square pyramid of base edge 18 centimetres and height 12 centimetres. What is the total cost of painting 500 such toys at 120 rupees per square metre ?

Hint:

For problems involving cost of painting or covering, first determine whether to use Lateral Surface Area (LSA) or Total Surface Area (TSA) based on the context. Then, calculate the total area for all items and perform the unit conversion *before* multiplying by the cost to avoid large numbers and potential errors.

Answer 1