Question

The length and breadth of a rectangular field are in the ratio 5 :3 if the cost of fencing around the field is 4800 at the rate of 50per metre find the length and breadth

Answer 1

Answer:

Let Length = 5x

Breadth = 3x

cost of fencing at rate of 50rs/m

perimeter x 50 = 4800

Perimeter = 4800/50

Perimeter = 96 m

Perimeter of rectangle = 2( l + b )

2 ( 5x + 3x) = 96

2 ( 8x ) = 96

16x = 96

x = 96/16

x= 6

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Length = 5 x 6 = 30m

Breadth = 3 x 6 = 18m