Question

tale
A door of length 4 m and breadth 3 m is fitted in a wall. The length of the wall is 16 m
and the breadth of the wall is 13 m 9 cm. Find the cost of whitewashing the wall at the
rate of 20 per square metre.​

Answer 1

Answer:

Your solution:

Given,

Length of Door= 4m & Breadth of Door= 3m

Therefore,

Area of Door= L×B = 4m×3m = 12m^2

Given,

Length of Wall= 16m & Breadth of Wall= 13.9m

Therefore,

Area of wall= L×B = 16m× 13.9m = 222.4 m^2

Area required for whitewashing

= Area of wall - Area of door

= (222.4 - 12) m^2

= 210.4 m^2

Cost for whitewashing per square metre

= 20 × Area required for whitewashing

= (20 × 210.4) rupees

= 4,208 rupees.

Hope this helps..

Mark Brainliest ♡♡♡

Step-by-step explanation: