Question

the length breadth and height of a room are 5m 4m and 3 respectively find the cost of whitewashing the inner of the room and ceiling at rupees 50 per square metre​

Answer 1

Answer:

ref. to the attachment

Step-by-step explanation:

Answer 2

Step-by-step explanation:

$total \: \: area \: \: of \: \: the \: \: room = 2(lb + hb + hl)$

2(lb+hb+lh)

=2(5×4+4×3+5×3)

=2(20+12+15)

=2(47)

=94sqm

rs required=94×50

=4700