Question

The length and breadth of a rectangular field are in the ratio 11:9.If it's breadth is 27m,find its length and perimeter.​

Answer 1

ANSWER:

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

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