A cost of cultivating a square field at a rate of ₹ 135 per hectare is ₹ 1215. The cost of putting a fence around it at the rate of 75 paise per meter wouldbe

Q: A cost of cultivating a square field at a rate of ₹ 135 per hectare is ₹ 1215. The cost of putting a fence around it at the rate of 75 paise per meter wouldbe

Area of the field =1215/135 = 9 hec = 90000 m2 [1 hec =10000 m2] ∴ Side of the field = √90000 = 300 m Perimeter of the field = 4 x 300 = 1200 m Now, cost of putting a fence around field = (1200 x 75)/100 = ₹ 900

₹ 360
₹ 810
₹ 900
₹ 1800

Correct Answer: ₹ 900

Explanation:

Area of the field =1215/135 = 9 hec
= 90000 m² [1 hec =10000 m²]
∴ Side of the field = √90000 = 300 m
Perimeter of the field = 4 x 300 = 1200 m
Now, cost of putting a fence around field = (1200 x 75)/100 = ₹ 900

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