The floor of the circular swimming pool whose radius is 7 m has to be cemented at the rate of ₹ 18 per m². Find the total cost of cementing the floor.

Open in App

Solution

Radius of the circular swimming pool r = 7 m
Area of the circular swimming pool A = πr² sq. units
= 227 × 7 × 7 m² = 154 m²
Cost of cementing a m² floor = ₹ 18.
Cost of cementing 154 m² floor = ₹ 18 × 154 = ₹ 2,772

Suggest Corrections

Similar questions

Q. A swimming pool is 20 m long 15 m wide and 3 m deep. Find the cost of repairing the floor and wall at the rate of Rs 25 per square metre.

Q. A room 9.5 m long and 6 m wide is surrounded by a 1.25-m-long verandah. Calculate cost of cementing the floor of this verandah at Rs 80 per m².

A verandah of width $2.25 m$ is constructed all along outside a room which is $5.5 m$ long and $4 m$ wide. Find:

(i) the area of the verandah

(ii) the cost of cementing the floor of the verandah at the rate of $R s . 200$ per $m^{2}$ .

A man has to build a rhombus shaped swimming pool. One of the diagonal is 13 m and the other is twice the first one. Then find the area of the swimming pool and also find the cost of cementing the floor at the rate of ₹ 15 per sq.m.

Q. Swimming pool is 20 m in length 15 m in breadth and 4 m in depth find the cost of cementing its floor and four walls at the rate 6 rupees 12 per metre square

Join BYJU'S Learning Program

The floor of the circular swimming pool whose radius is 7 m has to be cemented at the rate of ₹ 18 per m2. Find the total cost of cementing the floor.

Radius of the circular swimming pool r = 7 m Area of the circular swimming pool A = πr2 sq. units = 227 × 7 × 7 m2 = 154 m2 Cost of cementing a m2 floor = ₹ 18. Cost of cementing 154 m2 floor = ₹ 18 × 154 = ₹ 2,772

The floor of the circular swimming pool whose radius is 7 m has to be cemented at the rate of ₹ 18 per m². Find the total cost of cementing the floor.

Radius of the circular swimming pool r = 7 m
Area of the circular swimming pool A = πr² sq. units
= 227 × 7 × 7 m² = 154 m²
Cost of cementing a m² floor = ₹ 18.
Cost of cementing 154 m² floor = ₹ 18 × 154 = ₹ 2,772