The perimeter of a traingular field is 540m and its sides are in the ratio 25:17:12 find the area of triangle also find the cost of ploughing the field at rs 18.80 per 10m2
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25x+17x+12x=540
54x=540
x=540/54
x=10
one side 25x=250
two side 17x=170
three side 12x=120
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