Answer:
38 people
Explanation:
In this case, we can see that, being two people, the cost is 14 and when it is double, that is, 4 people, the value is not 28 but 20.
Which means that there is an additional value that is being charged for the vehicle, that is:
let "c" be the value of the vehicle and "x" be the value per person
c + 2 * x = 14
c + 4 * x = 20 => c = 20 - 4 * x
replacing:
20 - 4 * x + 2 * x = 14
-2 * x = 14-20
-2 * x = -6
x = 6/2
x = 3
for C:
c = 20 - 4 * 3
c = 8
Which means that the formula for the value of the input would then be:
e = 8 + 3 * n
where "n" is the number of people.
Now, we are told that for e = 122
122 = 8 * + 3 * n
3 * n = 122 -8
n = 114/3
n = 38
which means that for that bus there are a total of 38 people