Question

Five years ago Ben ws $4$ times as old as Julie. If Julie is $10$ years old now, how old is Ben?

• A. $40$
• B. $25$
• C. $14$
• D. $19$

Answer 1

The correct option is B $25$

Let us assume that Ben's age at present is $x$.

Five years age Ben's age was $x-5$ and Julie was $10-5=5$ years old.
And as per the given information, five years ago Ben was $4$ times as old as Julie, hence the equation we get now is
$x-5=4\times 5$
$x=20+5$
$x=25$
Now Ben is $25$ years old.