[" A padown is "50" m long."40" m broad and "10" m high.Find the cost of whitese ashing its four wal "],[" and cealing at "7" ? per square metre "]

A godown is 50 m long, 40 m broad and 10 m high. Find the cost of whitewashing its four walls and ceiling at Rs.20 per square metre.

A swimming pool is 50 m in length,30 m in breadth and 2.5 m in depth. Find the cost of cementing its floor and walls at the rate of Rs 27 per square metre.

A cuboid is 8 m long . 12 m broad and 3.5 m high. Find its total surface area.

A pool is 20m long,15m broad and 4m deep FInd the cost of cementing its floor and its wall at the rate of Rs.12 per square metre.

A room is 16 m long ,7 m broad and 8 m high. Find the cost of white washing the four walls of room at Rs. 7.5 per m^(2) , white washing is not to be done on the doors and windows , which occupy 65 m^2 .

A cuboid is 8 m long . 12 m broad and 3.5 m high. Find its lateral surface area.