Question

We want to put a fence around a
rectangular plot. The fence costs 30 per
meter.
The length and width of the plot are in
the ratio 4:3. The total cost of the
fencing comes out to be *1680.
Find the length of the plot.​

Answer 1

Step-by-step explanation:

perimeter = Total cost of fencing/ cost of fencing per meter

perimeter = 1680/30 = 56

Therefore the perimeter is 56 meter

Let the length and width be 4x and 3x

4x+3x =56

7x = 56

x = 56/7

x = 8

So, length = 4x = 4×8=32 m

Therefore the length of the plot is 32 m

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