Question

A rectangular hall is 12m by 8m its walls are 4m high the cost of painting the four walls at Rs. 25 per m^2 is

A) Rs. 2000

B)Rs.4000

C)Rs.6000​

Answer 1

this is your answer,,,

Answer 2

Csa of hall= 2h(l+b)

=2*4(12+8)

=8(20)

=160

Cost of painting =160*25

=rs 4000