the length and the breadth of a rectangular field are in the ratio 7 ratio for the cost of fencing the field at rupees 25 per metre is rupees 3300 find the dimensions of the field
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The total cost fencing of the field =Rs.3300
Rate of fencing = Rupees 25 per meter
Perimeter of the field = Total cost / Rate
=3300/25
=132 m
Let the length and breadth of the field be 7x and 4x, then
Perimeter of the field =2(7x+4x)m
=2(11x)
=22x
∴22x=132
x=132/22
x=6
Hence, the length of the field is 7x
=7×6
=42 m
Breadth of the field =4x
=4×6
=24 m
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