Explanation:
To solve this problem, we need to take the following steps:
Step 1: Calculate how many matches Jacob won in 1 win/loss cycle. That would be 2 wins per 4 losses, so for every 4 matches he played, he would have won 2.
Step 2: Since Jacob played 48 matches last year, divide 48 by 4 to get 12 cycles.
Step 3: Multiply 12 cycles by 2 wins in a cycle, to get the total number of wins Jacob had last year. That means he won 24 matches.
Therefore, Jacob won 24 out of 48 matches during last year.