Question

Find the cost of white washing the four walls of rectangular bar whose dimension are 30 m by 15 m by 20 m. At the rate of 2.10 rs per m

Answer 1

Answer:

Step-by-step explanation:

Rate of white wash would be 2.1 rs per square metre

There are total four walls to be white washed.

Two walls have area= 30x15x2= 900m2

Two walls have area= 20x15x2= 600m2

Total area of 4 walls= 1500 m2

Cost of 1 m2 area to be white washed = 2.1 rs

Cost of 1500 m2 area to be white washed= 1500x2.1= 3250 rs.