Answer:
<em>Sam is 30 years old, and Harry is 10 years old.</em>
Step-by-step explanation:
Let us assume that the age of Sam is x and the age of Harry is y.
Sam is currently is three times Harry's age.
So,
----------------------1
Sam's age is also 10 more than twice Harry's age.
so,
---------------2
Subtracting 2 from 1, we get
![\Rightarrow x-x=3y-2y-10](https://tex.z-dn.net/?f=%5CRightarrow%20x-x%3D3y-2y-10)
![\Rightarrow 0=y-10](https://tex.z-dn.net/?f=%5CRightarrow%200%3Dy-10)
![\Rightarrow y=10](https://tex.z-dn.net/?f=%5CRightarrow%20y%3D10)
putting this in equation 1,
![x=3(10)=30](https://tex.z-dn.net/?f=x%3D3%2810%29%3D30)
Therefore, Sam is 30 years old, and Harry is 10 years old.