In a race of 50 participants, Mark is in 12th position from the top. If he finishes the race and is overtaken by 5 participants, what will be his new rank from the bottom?
Answer: B. 37th
If Mark is 12th from the top and is overtaken by 5 participants, his new rank from the top will be 12 + 5 = 17th. Therefore, his rank from the bottom will be 50 - 17 + 1 = 34th.