The perimeter of the floor of a hall is $400 m$ . If the height is $6 c m$ find the cost of painting the four walls at the rate of $R s 10$ per square metre.

Open in App

Solution

Given perimeter of the floor is $400 m$
Height of the walls is $6 c m = 0.06 m$
Area of the four walls is $p e r i m e t e r \times h e i g h t = 400 \times 0.06 = 24 m$
Cost of painting per square metre is $R s .10$
So Cost of painting the four walls is $10 \times 24 = R s .240$

Suggest Corrections

Similar questions

Q. The floor of a rectangular hall has a perimeter of 250 m. Its height is 6 m. Find the cost of painting its four walls at the rate of Rs. 6 per square metre.

Q. The perimeter of the floor of a hall is 250m. If the height is 4m, find the cost of painting the four walls at the rate of Rs. 12 per square meter.

Q. The floor of a cuboidal hall has perimeter equal to 250 m and height 6 m. Find the cost of painting its four walls (including doors etc) at the rate of Rs.8 per square metre.

The perimeter of floor of a rectangular hall is $250 m$ . If its height is $6 m$ , find the cost of painting its four walls at the rate of Rs. $20$ per meter square.

Q. The floor of a rectangular hall has a perimeter

250 m

. If the cost of painting the four walls at the rate of

R s . 10

per

m^{2}

R s . 15000

, find the height of the hall.

Join BYJU'S Learning Program

The perimeter of the floor of a hall is 400 m. If the height is 6 cm find the cost of painting the four walls at the rate of Rs 10 per square metre.

Given perimeter of the floor is 400 mHeight of the walls is 6 cm=0.06 mArea of the four walls is perimeter×height=400×0.06=24 mCost of painting per square metre is Rs.10So Cost of painting the four walls is 10×24=Rs.240

The perimeter of the floor of a hall is $400 m$ . If the height is $6 c m$ find the cost of painting the four walls at the rate of $R s 10$ per square metre.

Given perimeter of the floor is $400 m$
Height of the walls is $6 c m = 0.06 m$
Area of the four walls is $p e r i m e t e r \times h e i g h t = 400 \times 0.06 = 24 m$
Cost of painting per square metre is $R s .10$
So Cost of painting the four walls is $10 \times 24 = R s .240$