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Raja is three times as old as Arun. Three years ago, he was four times as old as Arun. How old
is Raja now?
Let arun = x
then , raja = 3x ( given )
Three years earlier , arun = x-3 and raja = 3x-3
Then , Three years ago, he was four times as old as Arun.
Then , 4(x-3)=3x-3
4x-12 = 3x-3
x= 9
and then raja = 3*x = 3*9 = 27 years
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