Question

The 7th grade took a field trip to the zoo. 50 students rode in cars and the rest of the students were split equally onto 4 buses. There are 142 total 7th graders. How many students were on each bus?

Answer 1

traveledGiven:

The total number of students is N = 142.

The number of students riding in a car is n(C) = 50.

The total number of buses is b = 4.

The objective is to find the number of students traveling on each bus.

Step-by-step explanation:

Consider the number of students travelled in each bus as s.

Then, the total number of students traveling in 4 buses will be 4s.

The algebraic expression for the total number of students N can be represented as,

`N=n(C)+b(s)\text{ . . . . .(1)}`

On plugging the given values in equation (1),

`142=50+4s`

On further solving the above equation,

`\begin{gathered} 142-50=4s \\ 4s=92 \\ s=(92)/(4) \\ s=23 \end{gathered}`

Hence, the number of students traveling on each bus is 23.