A rectangular field is 150 m long . The cost of fencing it at the rate of rupees 60 per meter is rupees 120,600, find the area in square metre.
Answers
Answered by
31
₹60 is the Cost of fencing of 1m of rectangular field
₹120600 is the cost of fencing of 120600÷60=2010m of rectangular field
2010m is the perimeter of rectangular field
Perimeter=2×(l+b)
2010=2×(150+b)
b=855m
Area of rectangular field=150×855=128250sqm
Answered by
18
120600/60 =2010 (perimeter)
p=2×(l+b)
p=2×(150+b)=2010
p=300+2b=2010
2b=2010-300
2b=1710
=1710/2
=855
b=855
l=150
a=l×b
a=150×855
=128250
hope it helps
p=2×(l+b)
p=2×(150+b)=2010
p=300+2b=2010
2b=2010-300
2b=1710
=1710/2
=855
b=855
l=150
a=l×b
a=150×855
=128250
hope it helps
Similar questions