Sarah got on the school bus. At the stop after Sarah's, 7 students got on. 5 students got on the bus at the next stop. At the last stop before the school, 9 students got on. When the bus arrived at the school, 38 student got off. How many students were already on the bus when Sarah got on?
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Answers
Answer:
16
Step-by-step explanation:
Let the students already in the bus be x.
When Sarah got on, students became x+1.
At stop after Sarah's students became = x + 1 + 7
At next stop students became,
x + 1 + 7 + 5
At last stop students became,
x + 1 + 7 + 5 + 9
Now, the number of students which get on the bus will only be the students who get off the bus
So,
the number of students on the bus = number of students got off.
x + 1+7+5+9 = 38
x + 22 = 38
x = 16
Answer:
Therefore,No. of students already in bus before Sarah = 16 students
Step-by-step explanation:
let no. of students before Sarah be X
at the Sarah stop = 1 student got on
on the next stop = 7 students got on
at the next stop = 5 students got on
on the last stop = 9 students got on
total number of students before Sarah
= 1 + 7 + 5 + 9 = 22 students
According to the problem
X + 22 students = 38 students
X = 38 - 22 students
X = 16 students
Therefore,No. of students already in bus before Sarah = 16 students