Question

Fifteen people pass a checkpoint to get on a plane in 5 minutes. At this rate, how many people will pass this checkpoint in two hours?

a. 1,800
b. 1,600
c. 1,200
d. 1,000

Answer 1

To determine how many people will pass through a checkpoint in two hours at a rate of 15 people per 5 minutes, multiply the number of 5-minute intervals in two hours by 15, resulting in 360 people.

Step-by-step explanation:

The student has asked to find out how many people will pass through a checkpoint in two hours if 15 people pass in 5 minutes. To solve this, first, calculate the number of 5-minute intervals in two hours. There are 60 minutes in an hour, so there are 120 minutes in two hours. Then, divide 120 minutes by 5 minutes to find out how many 5-minute intervals are there in two hours, which gives us 24 intervals. Next, since 15 people pass in one interval, multiply 15 people by 24 intervals. The calculation is as follows: 15 people/interval × 24 intervals = 360 people. Therefore, this rate will lead to 360 people passing the checkpoint in two hours.