Last Fred had $47 dollars. He washed cars o er the weekend and now has $50 dollars. How much money did he make washing cars

Question

Last week Fred had 47 dollars.  He washed cars over the weekend and  now has 50 dollars.  How much money did he make washing cars 

Answer 1

What number do you have to add 47 to in order to get to 50?

Answer 2

One would think  3