IQ Interview Question To Answer - Gracie went for a morning walk and met her old friend Suzie... | Job Interview Tips Q&A

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Job Interview Tips Q&A
IQ Interview Question To Answer - Gracie went for a morning walk and met her old friend Suzie 
QUESTION
Gracie went for a morning walk and met her old friend Suzie and her daughter Jennie after a long time. Gracie asked Suzie how old is Jennie to which Jennie replied “In two years I will be twice as old as I was three years ago”. How old is Jennie? 
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FIND ANSWER
Answer:   8 years.
Explaination:  Let Jennie’s current age be x yrs
Therefore after 2 yrs she will be x+2 and 3 yrs ago she was x-3
By the problem,
2(x-3)=x+2
or, 2x-6=x+2
or, x=8