Five years ago, Nuri was thrice as old as Sonu. Express the information in a linear equation.

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x+y=5

x=3y-10

y=3x+5

None of these

answer is B.

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Detailed Solution

Let the age of Nuri be x
Let the age of sonu be y
According to the question ,
5 years ago,
The Nuri age = ( x -5 )
The Sonu age = ( y - 5 )
➔     (x-5)=3(y-5)
➔     x=3y-15+5
➔     x=3y-10
So, Option 2 is correct.

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