We have a question: A train travels 360 miles in 3 hours. At the same rate, how many additional hours would it take to travel an additional 240 miles?
And an answer: 2
So how you got the answer?
The rate is 360 / 3 = 120 mph. Then it would take 240 / 120 = 2 additional hours.

We have a question: The town is having a race to see who can run around the town square 7 times the fastest. The town square is 3/4 of a mile long. The winner finishes the race in 42 minutes. Last year's winner finished in 47.25 minutes. How many minutes on average faster did this year's winner run one mile of the race compared to last year?
And an answer: 1
So how you got the answer?
The race is 5.25 miles long because 7 x .75 = 5.25. They ran a mile in 8 minutes because 42 / 5.25 = 8. Last year's winner ran a mile in 9 minutes because 47.25 / 5.25 = 9. They ran 1 minute faster per mile compared to last year's winner.

We have a question: Forty percent of the students have elected to learn from home during the pandemic. The remaining students are divided into two equal groups, only one of which is physically in school on any day. What percent of students are present in school?
And an answer: 30
So how you got the answer?

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
100 - 40 = 60 percent of students are remaining. 60 / 2 = 30 percent are present in school.