X
Free Study Rankers App Download Now
0 votes
146 views
in Class VII Maths by (-2,152 points)

The length and breadth of a rectangular field are in the ratio 7 : 4. If its perimeter is 440 m, find its length and breadth. Also, find the cost of fencing it @ ₹150 per m.

Please log in or register to answer this question.

1 Answer

0 votes
by (-4,941 points)

Given : Perimeter = 440 m
Let the length of rectangular field = lx and breadth = 4x
2(l + b) = Perimeter
2(7x + 4x) = 440 m
2(11x) = 440 m
22x = 440 m
x = 440/22
x = 11 m
∴ Length = 7x = 7 x 11 = 77 m
Breadth = Ax = 4 x 11 = 44 m
Cost of fencing per m = ₹150
Cost of fencing 440 m = ₹150 x 440 = ₹66,000

Related questions

0 votes
1 answer
StudyrankersApp

Categories

...