Question

a door of breadth1 m and height 2 metre is fitted in a wall the length of the wall is 4.5 M and the height is 3.6 M find the cost of whitewashing the what is the rate of whitewashing the wall is rupees 20 per metre square

Answer 1

breadth of door = 1m 284
lengthy of door = 2m
area of door = b*l
=1*2
= 2metre square
lenght of wall= 4.5m
breadth of wall= 3.6m
area of wall= l*b
= 4.5*3.6
=16.20metre square
area which is whitewashing = 16.20-2
= 14.20metre square
cost of 1 metre square= 20 rupees
cost of 14.20 metre square= 14.20*20
= 284.00 rupees.a answer