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Question

The perimetre of a rectangle swimming pool is 154 metre. It's length is 2 metre more than twice it's breath. What are the length and breadth of the pool ?


Solution

Given Perimeter =154m=154m
Let the breadth =x

length =2x+2=2x+2
Perimeter of a rectangle = 2(lenght +breadth)
                                       =2(x+2x+2)
=>    2(3x+2)=154
=>   3x+2=154/2
=>    3x+2=77
         3x=77−2
           3x=75
            x=75

Breadth =25 m
length =25×2+2
         =50+2
         =52 m

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