Multiple choice general knowledge math & puzzles

In june a baseball team that played 60 games had won 30% of its game played. After a phenomenal winning streak this team raised its average to 50% .How many games must the team have won in a row to attain this average?

  1. 12

  2. 20

  3. 24

  4. 40

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Initially, 30% of 60 games = 18 wins. After winning x games consecutively: (18+x)/(60+x) = 0.50. Solving: 18+x = 30 + 0.5x, so 0.5x = 12, and x = 24. With 24 more wins, total wins = 42 out of 84 games = 50%. Options A (12) and B (20) are too few; option D (40) would exceed 50%.