The Ratio of the length and breadth of a plot is 3:2 .If the breadth is 40m les

Question

The Ratio of the length and breadth of a plot is 3:2 .If the breadth is 40m less than the what is the parameter of the plot?

Options:

A . 480m

B . 320m

C . 400m

D . 450m

Answer: Option C

Let the length be 3x metres , then breadth = 2x metres
Then 3x -2x =40
=> X =40
=> l =(3x 40) = 120 m and b =(2 x 40) =80m
=> perimeter = 2(120 + 80)m = 400m

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