CBSE Class 10 Answered
plzzz tell fast for tomorrow's boards
Asked by ashwinivg | 10 Mar, 2010, 08:46: PM
Expert Answer
There are only 4 ways, because one envelope corresponds to one letter.
But for any one letter selected there are 4 envelopes available, so we put it in any one.
For second letter now there are 3 envelopes available,
For third only two are available.
Total number of ways = 4x3x2 = 24
The same way of saying it is, 4!.
Regards,
Team,
TopperLearning.
Answered by | 10 Mar, 2010, 09:50: PM
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