(17) There is a narrow rectangular plot, reserved for a school. The length and breadth of the plot are in the ratio 2:3. At the rate Rs 50 per metre it will cost Rs 100000 to fence the plot.
What are the dimensions of the plot ?
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Therefore perimeter=100000/50
=2000m
Ratio of length and breadth is 2:3
Therefore let a part of ratio be x, therefore
Length =2x
Breadth=5x
Perimeter=2(2x+5x)
=14x
But perimeter was 2000
14x=2000
x=1000/7
Length=2000/7
Breadth=3000/7
=2000m
Ratio of length and breadth is 2:3
Therefore let a part of ratio be x, therefore
Length =2x
Breadth=5x
Perimeter=2(2x+5x)
=14x
But perimeter was 2000
14x=2000
x=1000/7
Length=2000/7
Breadth=3000/7
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