CBSE Class 7 Answered
Find the breadth of a rectangular field , if it's area is 440 metre square and length is 22 m. Find cost of fencing wire at the rate of Rs. 2.20 per m.
Asked by radhikapanwar2014 | 23 Jan, 2019, 08:28: PM
Expert Answer
Let l be the length and b be the breadth of field.
Area = l×b = 22×b = 440 sq.m ; hence breadth = 20 m
cost of fencing = perimeter×cost_per_unit_length = 2(l+b)×cost_per_unit_length = 2×42×2.20 = Rs.184.80
Answered by Thiyagarajan K | 24 Jan, 2019, 02:37: PM
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