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

B. 19TH

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?

B. 35TH

If two students, Mark and Lisa, interchange their ranks and Mark is currently 8th from the top and 22nd from the bottom, what will be Lisa's rank from the bottom if she is currently 22nd from the top?

A. 8TH

In a class of 30 students, A is ranked 10th from the top. What is A's rank from the bottom?

B. 21ST