Question

how many tiles of diamensions 22.5cm, 10cm and 7.5cm can be painted if the paint is juct sufficient for the surface area 2812.50 cm²?

Answer 1

so surface area of one tile is 22.5 x 10

so no of tiles required 2812.50/(22.5 x 10) = 12. 5 so only 12 tiles can be coloured

Answer 2

Answer:

so surface area of one tile is 22.5 x 10

so number of tiles required 2812.50/(22.5 x 10) = 12. 5 so only 12 tiles can be coloured