Raman has to split 12 balls into different groups with equal number of balls in each group. In how many ways can he form these groups?
A
3
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B
4
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C
5
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D
6
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Solution
The correct option is D 6 We have to find the factors of 12.
Factors of 12 = 1, 2, 3, 4, 6, 12.
Raman can put them in groups of 1, 2, 3, 4, 6 and 12 without any ball being left.
Therefore, he can form 6 different groups with 12 balls.