Question 63

The cost of levelling and turfing a square field at Rs. 160 per hectare is 2624.40. The cost of surrounding it with a railing costing 25 paise per meter is

Solution

Area of the square field in hectares=total cost/cost per hectare=2624.40/160=16.4025 ha

1 hectare =1000 m$$^{2}$$

∴ area of square field=164025 m$$^{2}$$

side of square field=a=√164025=405 m

total cost of surrounding the field with railing=perimeter of field × cost of railing per metre=4 × a × .25= Rs.405

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