Question

8. A swimming pool is 40 m in length, 20 m in breadth and 5 m in depth. Find the cost of
cementing its four walls and floor at the rate of Rs. 10 per m²​

Answer 1

Answer:

Step-by-step explanation:

Since cementing 4 walls and floor means

Lateral Surface area + Rectangular Base

=> 2.h.(L+b) + (Lxb)

=> 2.5.(40+20) + (40x20)

=> 10.(60) + 800

=> 600 + 800 = 1400square m

1400 sq m area should be cemented

Now

Per sq m cost = ₹10

1400 sq m cost = 1400x10 = ₹14,000

Answer 2

Answer:

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