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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. |
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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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