Question:
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?
A. 12
B. 20
C. 24
D. 30
Answer:
24, 18+x/(60+x)= 0.5
18+x= 30+x0.5
x/2= 12