Question

plz answer very urgent

Answer 1

let l=9m
b=8m
h=6.5m
area of a room =2(l+b)h
=2(9+8)6.5
=2(17)6.5
=13*17
=221m^2
area of a door=lb
=2*1.5
=3m^2
area of four window= 4*lb
=4*1.5*1
=6m^2
area of white washing =area of a room -(area of
a door + area of four
window)
=221-(3+6)
=221-9
=212m^2
cost of whitewashing the wall per m^2=Rs 25
cost of whitewashing the wall 212m^2=Rs 25*
212m^2
= Rs 5,300