Question

A cuboidal room is of length 15 m, breadth 17 m, and height 21 m. Find the cost of painting its walls and ceiling at the rate of ₹40/m²

• A. ₹63,960
• B. ₹58,912
• C. ₹44,250
• D. ₹85,126

Answer 1

Answer:

A. ₹63,960

length =15 m breadth =17 m height = 21 m wall area=2(length x height)+2(breadth x height) =2(15 x 21)+2(17 x 21) =2(315+357)=1344 area of ceiling = legth x breadth =15 x 17=255 total area =255+1344=1599 amount per unit = 40 then thetotal amount =40 x 1599=63960