Question

9. Find the cost of cultivating a rectangular field 35 m long and 18 m wide at rupees 20 per square metre. Also, find the cost of fencing the field at rupees 15 per metre .​

Answer 1

Area of a rectangle= length into breadth

Therefore, area of the rectangular field= 35 m*18 m= 630 m square

Thus, the cost of cultivating the field at Rs. 20 per square metre= 630*20= Rs. 12600.

Perimeter of a rectangle= 2*(length + breadth)

Therefore, the perimeter of the rectangular field= 2*(35 m+18 m) = 2* 53 m= 106 m

Thus the cost of fencing the field at Rs. 15 per metre= 106 m* 15 = Rs. 1590

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