Question

A black board of sides 5m20cm and 3m40cm is to be painted.find the cost at the rate of Rs12 per sq.m

Answer 1

First we will calculate the area = 5.2 *3.4 sq.m.
= 17.68 sq.m.
Cost of painting = Rs 12 per sq.m.
So, Total cost of painting = Rs 212.16.