In a class of 30 students, John is ranked 8th from the top. What is his rank from the bottom?

A. 22ND

In a race of 15 participants, if Sam is 3rd from the top and 13th from the bottom, how many participants are there in total?

A. 15

If two students, Mark and Lisa, interchange their seats and Mark's new rank from the top becomes 10th, while Lisa's rank from the bottom is now 5th, how many students are there in total?

B. 15

In a competition of 25 participants, if Tom is ranked 12th from the top, what is his rank from the bottom?

B. 13TH

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

B. 19TH