Teacher is to School as Doctor is to ?

A. HOSPITAL

In a class of 30 students, John is ranked 12th from the top. What is his rank from the bottom?

B. 18TH

Alice is ranked 5th from the top and 26th from the bottom in a competition. How many participants are there in total?

B. 31

In a race of 50 runners, if Sam is 15th from the top, what is his position from the bottom?

A. 36TH

If two students, Mark and Lucy, interchange their ranks in a group of 40 students where Mark is 10th from the top and Lucy is 31st from the bottom, what will be Mark's new rank from the bottom after the interchange?

A. 30TH