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 Mark is in 15th position from the top, what is his position from the bottom?

A. 35TH

If Sarah is ranked 8th from the top and 22nd from the bottom in a quiz competition, how many participants are there?

C. 31

In a group of 40 people, if Tom is 10th from the top and after swapping places with another person, he becomes 15th from the top. What is the rank of the person who swapped with him from the bottom?

B. 25TH