the lenght and breadth of a rectangular piece of land are in the ratio 5:2. The total cost of fencing it at rs 12.5 per m is rs 25,000. find its lenght and breadth.
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Step-by-step explanation:
₹12.5 is the cost of fencing = 1m
₹ 1 is the cost of fencing = 1/12.5 m
₹ 25000 is the cost of fencing= 25000/12.5 m
= 2000m
Let the length and breadth be 5x and 2x
According to the problem,
2( 5x +2x) = 2000
=> 7x = 1000
=> x= 1000/7
Therefore,
length = 5x = (5×1000)/7 = 714.29 m (approx)
breadth = 2x = (2×1000)/7 = 285.71 m (approx)
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