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Sabnam has 2 school bags, 3 tiffin boxes and 2 water bottles. How many combinations?
ASixteen
BEighteen
CTwelve
DFourteen
Answer & Solution
Correct answer: C. Twelve
1. Three choices are made one after the other.
2. The multiplication principle extends to any finite number of events.
3. Multiply 2 by 3 by 2.
4. That gives twelve.
_Source: NCERT Class XI Mathematics, Ch 6 'Permutations and Combinations'_
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