Question

2.A room is of lenth 10m,breadth 8m and height 7m.Its wall shasto be painted.If therate of

painting is 25 Rs per square metre then find the expenditure on painting.​

Answer 1

Length= 10 m

Breadth= 8 m

Height= 7 m

Now;

Area of the 4 walls of the room= 2×(l+b)×h

=2×(10m+8m)×7m

=36m×7m

$= 252 {m}^{2}$

Now; According to the question-

Painting of 1 sq. metre area costs 25 Rs.

Then,painting of 252 sq. metre of area will cost=

(252×25)Rs.

6,300 Rs.

Hence, the expenditure on painting is 6,300 Rs.