12
<h3>
Further explanation</h3>
<u>Given:</u>
In an auditorium,
- of the students are fifth graders,
- are fourth graders, and
- of the remaining students are second graders.
There are 96 students in the auditorium.
<u>Question:</u>
How many second graders are there?
<u>The Process:</u>
The least common multiple (LCM) of 3 and 6 is 6.
Let us draw the diagram of all students.
- of the students are fifth graders, or 1 of 6 units above, that is
- are fourth graders, or 2 of 6 units above, that is
The remainder is 6 units - (1 unit + 2 units) = 3 units, that is . Or, 96 - 16 - 32 = 48 students.
of the remaining students are second graders.
Let us count how many second graders are there.
Thus, there are 12 second-graders in the auditorium.
- - - - - - - - - -
Quick Steps
We crossed out 24 and 96.
<h3>
Learn more</h3>
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Keywords: In an auditorium, 1/6 of the students, fifth graders, 1/3, fourth, 1/4, the remaining students, second, 96, how many, second graders
Say you have this problem.
4x=2x-4
First you would combine your like terms.
4x = 2x-4
-2x=-2x-4
---------------
2x=-4
Next you would divide
2x =-4
÷ -4 =-4
--------------
x = 0.5
B is the answer to this question