Question

A room is 12 m long and 8 M broad find the cost of whitewashing its ceiling at 4. 50 per square metre

Answer 1

Length = 12m .

Breadth = 8 m.

Area of roof or ceiling = 12 * 8 = 96 m² .

Now, Cost of white washing = 96 * 4.50 = 432 Rupees.

Answer 2

area of room=12m×8m=96m square
cost of white washing=4.50×96=432