Question

a swimming pool 50 metre in length 30 cm and breadth 2.5 metre in depth find the cost of cementing its floor and walls @ rupees 27 per square metre ​

Answer 1

Cost of 1900 meter square = Rs. 51,300

Step-by-step explanation:

Length of Pool = 50 m

Breadth of Pool = 30 m

Depth of Pool = 2.5 m

Surface Are of floor and four walls = area of floor + 2 x Area of long wall + 2 x Area of short wall

= l x b + 2 x l x h + 2 x b x h

= l x b + 2 x ( l + b ) h

= 50 x 30 + 2 x ( 50 + 30 ) 2.5

= 1500 + 400

= 1900 Square Meter

Now,

Cost of 1 meter square = Rs. 27

Cost of 1900 meter square = Rs. 27 x 1900

Cost of 1900 meter square = Rs. 51,300