Question

find the area of the four walls of a room whose Length, breadth and height are 8 metre, 6m,and 5m respectively. ignoring the door window and other openings find the cost of whitewashing the walls 7 rupees per square metre

Answer 1

Answer:

by following steps

Step-by-step explanation:

csa of cuboid=2*l+b*h

2*14*5

140

cost of 1 sq. meter=7 so cost of 140 sq. meter=140*7=980

Answer 2

2(l+b)×h

2×14×5

140

140×7

980 rs

please my answer mark as brainlist