Question 978630


Let &nbsp;<B>x</B>&nbsp; be the Sam's age now.

Then Jo's age now is &nbsp;x+4, &nbsp;according to the condition.


In &nbsp;5&nbsp; years Jo's age will be &nbsp;(x+4)+5, &nbsp;and it is twice &nbsp;Sam's age now:


(x+4)+5 = 2x.


It gives


x + 9 = 2x,

x = 9.


So, &nbsp;Sam is &nbsp;9&nbsp; years old now. &nbsp;Jo is &nbsp;9 + 4 = 13&nbsp; years old now.


<B>Answer</B>. &nbsp;Sam is &nbsp;9&nbsp; years old now. &nbsp;Jo &nbsp;13&nbsp; years old now.