Word problems › Money and shopping › Best buy within a budget
Two stock transactions on three days
High school · ●○○○○ 10 pts
The price of a stock on days 1, 2 and 3 is $2, $4 and $1. You may complete at most 2 transactions (a transaction is one buy followed by one sell), and you must sell the stock before you buy again. Find the maximum profit in dollars.