Question

The length and breadth of a rectangular field are in the ratio of 5:3 . Area of the field is 2160sq.m. if a fence is to be made at the rate of ₹ 350 per metre, how much will it cost ?

Answer 1

let length be 5x and breadth be 3x
5x ×3x=2160
15x^2=2160
x=2160/15=144
x=√144=12
5x=60
3x=36
2(60+36)=192
192×350=67200rs

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Answer 2

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