Mike plans to run seven-eighths mile. He begins running, but two-thirds of the way he pulls a hamstring muscle. What fraction of a mile did he run?
A. seven over twelve
B. fourteen over twenty-five
C. ten over eleven
D. seven over eleven
To solve this problem, we need to find the fraction of a mile Mike ran before pulling his hamstring muscle.
Let's start by finding out what fraction of the mile he did run before the injury:
2/3 of 7/8 is (2/3) x (7/8) = 14/24 = 7/12
So Mike ran 7/12 of a mile before pulling his hamstring muscle.
Therefore, the answer is A. seven over twelve.