Question

In a rectangular room of dimensions 8m*6m*3m is to be painted if it cost 60 rupees per metre find the cost of Painting of wheels of the room

Answer 1

Question should be :-In a rectangular room of dimensions 8m*6m*3m is to be painted if it cost 60 rupees per metre² find the cost of Painting of walls of the room.
Now given,
dimensions of room is.( 8×6×3)m
So,

l= 8m

b= 6m

h= 3. (where l= length, b = breadth, h= height),

Now we Know that ,

Surface are of four walls =2h(l+b) ,
= 2*3(8+6)

=6×14

=84m²

Now,
painting cost of 1m² = 60 Rupees
.·. painting cost of 84m² = 60×84

= ₹5040.

Answer 2

Here is your answer

Length=8m

Breadth=6m

Height=3m

Area of 4 walls of room=2 (l+b)×h=2 (8+6)×3=6×14=84m^2

Cost of painting 1m^2=Rs.60

Cost of painting 84m^2=84×60=Rs.5040