1.

the length and breadth of a rectangular field are in the 7:4 ,if it's perimeter is 440. Find it's length and breadth.​

Answer»

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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