Question

The total cost to paint all the 4 walls of a room with length, breadth and height as 10 m, 20 m and 5 m respectively at the rate of Rs. 10 per sq. meter is Rs.7000. State whether the estimation is true or false.

• A. True
• B. False

Answer 1

The correct option is B

False

Given l=10 cm, b=20 cm and h=5 cm

The lateral surface area of Cuboid= 2h(l+b)= 300 $c{m}^2$

So, total cost= 300 $\times$ 10= Rs.3000

Hence, false.