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There are 4 groups of 2 in 8 (2X4=8, 8/2=4)

There are 28 pairs in all the numbers between 1 and 8 (1&2,1&3, etc.)

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Q: How many groups of 2 are there in 8?
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There are 32 students in a class how many ways can they be divided in groups with equal numbers of students?

they can be 2 groups of 16, 4 groups of 8, 8 groups of 4, or 16 groups of 2


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