Question

A rectangle field is 60 m long and it's breadth is 15m less than its length?. Find the cost of fencing it at the rate is 3 per any

Answer 1

Area of rectangle = l×b
60×45
=2700m2
perimeter= 2(l+b)
=2(60+45)
=2×105
=210
cost of fencing= 210×3
=Rupee 630

Answer 2

length=60m
breath=60-15=55
perimeter of rectangle=2(l+b)
=2(60+55)
=2(115) =2*115=230m

cost of fencing at rate of 3 ₹ per meter
3*230=₹690 per/metere