John and Steve are speed walkers in a race. John is 10 meters behind Steve when he begins his final push. John blazes to the finish at a pace of 4.2 m/s, while Steve maintains a blistering 3.7 m/s speed. If John finishes the race 2 meters ahead of Steve, how long was John’s final push?
Pick one
A) 13 seconds
B) 17 seconds
C) 24 seconds
D) 34 seconds
E) 51 seconds
Let t be the time that John spent for his final push.   Thus, per the question,   4.2t = 3.7t+10+2 ---&gt; 0.5t = 12 ---&gt; t = 24 seconds.   24 seconds is the correct answer.
<result>C</result>
John and Steve are speed walkers in a race. John is 10 meters behind Steve when he begins his final push. John blazes to the finish at a pace of 4.2 m/s, while Steve maintains a blistering 3.7 m/s speed. If John finishes the race 2 meters ahead of Steve, how long was John’s final push?