CBSE Class 11-science Answered
confused where to apply permutation & where combination.
Asked by sarkar.abhilash | 29 Feb, 2008, 12:43: PM
Expert Answer
Analyize the question. Read the question clearly and see what is given in the problem and what is needed to solve.
See the problem is of permutation or combination.
The basic rule is that if the order of selection matters, then it is a permutation and if the order of selection does not matter, then it is a combination
for example This is permutation problem
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Answered by | 29 Feb, 2008, 12:48: PM
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