+151 Skylar had 3/5 as many coins as Ben. Ben gave 10 coins to Skylar so that they would each have the same amount. How many coins did the two friends have altogether?
+166 Suppose Ben had \(b\) coins originally. Then Skylar has \(3b/5\) coins (also originally).
Since after Ben gives Skylar ten coins they each have the same amount, we can get the equation
\(b-10=3b/5+10\)
Solving, we have \(b=50\), so then Skylar had \(30\) coins. Therefore, the two friends had \(\boxed{80}\) coins altogether.
