a rectangular field is 60 meter and its breadth is 15 m less than its length. find the cost of turfing it as the rate of rupees 2.50 per square metre. also find the cost of fencing it at a rate of rupees 3 per metre.
Answers
Step-by-step explanation:
perimeter of rectangular field= 60m
length of rectangular field=x m
breadth of rectangular field=(x-15)m
Formula of ,
perimeter of rectangle
=2(l)+2(b)
therefore,
60m=2(l)+2(b)
60=2(x)+2(x-15)
60=2x+2x-30
60+30=4x
90=4x
x=90/4
x=22.5
length of rectangular field=x=22.5
breadth of rectangular field=(x-15)
=(22.5-15)
=7.5
cost of fencing 1m=Rs.3
cost of fencing 60m=3×60
=Rs.180
formula of ,
area of rectangle= l×b
=22.5×7.5
=168.75 m^2
Cost of turfing 1m^2 of field= Rs.2.50
Cost of turfing 168.75m^2 of field
= 2.50×168.75
=Rs. 421.875
~Rs.422
Answer:
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