CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

The length and breadth of a rectangular field are in the ratio 4:3. Its area is 6,912 m2 .Find the cost of fencing the field at Rs.2.50 per metre

Open in App
Solution

let length,breadth,area be l,b,A respectively.
A=6912m2
l:b=4:3
b=3×l4
A=l×b
A=l×3l4
A=3l24
3l24=6912
l2=4×69123
l2=9216
l=96m
b=3×964=72m
the cost of fencing depends on the perimeter of rectangular field
perimeter=2×(l+b)=2×(96+72)=336m
cost per meter in Rs =2.50
cost for total fencing =2.50×336=Rs.840

flag
Suggest Corrections
thumbs-up
1
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Crystallization
MATHEMATICS
Watch in App
Join BYJU'S Learning Program
CrossIcon