Question

Write whether the following statement vary directly, vary inversely with each other, or neither of the two.

Area of the walls of a room and the cost of white washing the walls.

Answer 1

Area of the walls of a room and the cost of whitewashing the walls are directly proportional to each other.

E.g. Let Rs 1000 required for whitewashing a room with (12 × 8) m size.

Then, Rs 2000 is required to whitewashing a room with (12 × 16) m size.