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Question

A group of 31 students made the school trip. There were five buses and a car and the car was filled with 7 students. How many students were on each bus?

A
4
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B
3
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C
5
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D
8
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Solution

The correct option is C 5
Given, a total number of students = 31
The number of students in a car = 7
The number of buses = 5

Let the number of students in each bus be x, then the number of students in 5 buses = 5x

The number of students in 5 buses + The number of students in a car = Total number of students
5x+7=31

We need to solve x by isolating it to one side of the equation

Step 1: Subtract 7 from both sides of the equation to eliminate the constant on the left side of the equation.
5x+77=317 5x=25

Step 2: Now, divide both sides by 5 to eliminate 5 on the left side of the equation.
5x5=255 x=5

Hence, 5 students were there in each bus.

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