Question

The cost of cultivating a square field at the rate Rs 360 per hectare is Rs 3240. What is the cost of putting a fence around it at 75 paise per metre?

Answer 1

Solutions :-

We know that,
1 hectare = 10000 m²


Given : The cost of cultivating a square field at the rate Rs 360 per hectare is Rs 3240.

Rs 360 = 1 hectare
Rs 3240 = 3240/360 = 9 hectare


Find the length of one side of square field :-

Area of square = (side)²
=> 9 × 10000 = (side)²
=> √90000 = side = 300 m


Find the perimeter of square field :-

Perimeter of Square = 4 × side
= 4 × 300 m
= 1200 m


Find the cost of putting a fence around it at 75 paise per metre :-

1 m = Rs 0.75
1200 = Rs (0.75 × 1200) = Rs 900


Hence,
The cost of putting a fence around it at 75 paise per metre = Rs 900

Answer 2

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QUESTION :)

The cost of cultivating a square field at the rate Rs 360 per hectare is Rs 3240. What is the cost of putting a fence around it at 75 paise per metre?

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ANSWERS :)

Rs 360 is the cost of cultivation of 1 hectare

So Rs 3260 will be cost for 3240/360=9hectare= 90000sqmeter

Since 1 hectare = 10000sqmeter
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So area of square lanl =90000sqmeter

So length of each side = ✓90000=300m

Its perimeter =4*300=1200m
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So the cost of fencing @Rs0.75 will be

=RS.0.75*1200=Rs900.

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#Be brainly