In the sequence 1, 3, 5, 7, 9, 11, how many times does the number 3 occur?

A. 1

If a train departs at 3:15 PM on July 5, 2023, and the journey takes 2 hours and 45 minutes, what time will it arrive?

B. 5:15 PM

In the sequence 2, 4, 6, 8, 10, 12, how many times does the number 8 occur?

A. 1

If a train departs on February 28, 2023, and travels for 72 hours, what is the arrival date?

B. MARCH 3, 2023

In a quiz competition, Tom is ranked 10th from the top and after swapping places with another participant, he is now ranked 15th from the top. How many participants are there in total?

B. 21