Question

Mr Sharma has given a contract to fence his field. He spend Rs 4400 at the rate of Rs 140 per metre. Find the perimeter of the field. If the field is 7 m long. find its breadth.




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Answer 1

Step-by-step explanation:

perimeter of field= cost of fencing / rate

= 4400/140= 31.43 m (approx)

perimeter= 2(l+b)

31.43 = 2(7+b)

31.43/14=2b

2.245=2b

b=1.1225

Answer 2

Answer:

Cost=area×rate

4400=area×140

area=4400/140=31.4 m

perimeter=2 (l+b)

31.4=2 (7+b)

31.4=14+b

b=31.4-7

b=24.4 m