Question

the length breadth and height of a room is 5 centimetre 4 centimetre and 3 centimetre find the cost of whitewashing as four halls At the rate of rupees 7.50 m square is​

Answer 1

Step-by-step explanation:

lenght = 5m

breadth = 4m

height = 3m

First we need to fine the LSA of the cuboid as it is mentioned as four walls

LSA of cuboid = 2(lb + bh + hl)

= 2((5×4)+(4×3)+(3×5))

= 2(20+12+15)

= 2(47)

LSA = 94m^2

whitewashing at the rate of rs.7.50 per m^2

LSA ×7.50

Rs.705 is your answer