Question

For a charter bus, students must pay $30 each if 28 students go on the trip. If only 21 students sign up for the trip, how much would each have to pay if the total cost remains the same?

Options:
a. $20
b. $25
c. $30
d. $35

Answer 1

If only 21 students sign up for the trip, each student would have to pay $22.50. Hence none of the option is correct.

Step-by-step explanation:

To find out how much each student would have to pay if only 21 students sign up for the trip, we will assume that the total cost remains the same.

Since the total cost is $30 for 28 students, we can set up a proportion to find the cost for 21 students:

28 students / $30 = 21 students / x

Cross multiplying, we get:

x = (21 students * $30) / 28 students

x = $22.50

Therefore, each student would have to pay $22.50 if only 21 students sign up for the trip.

Hence none of the option is correct.