Question

the cost of fencing a square field at 40 paise per metre is rs 2000. find the cost of watering the field at 80 paise per 100 square metre.​

Answer 1

Given:

The cost of fencing a square field at 40 paise per metre is 2000 rupees.

To Find:

Find the cost of watering the field at 80 paise per 100 square metres.​

Solution:

Given, the cost of fencing a square field at 40 paise per metre is 2000 rupees.

Therefore, the perimeter of the square field = $\frac{2000* 100}{40} = 5000$ metres.

So, the length of a side of the square field is $\frac{5000}{4} =1250$ metres.

Therefore, the area of the square field = $(1250)^{2} = 1562500$ square metres.

Now, the cost of watering the field at 80 paise per 100 square metres is

$\frac{1562500*80}{100*100} = 12500$ rupees.

Answer 2

Step-by-step explanation:

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