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How many 3-digit numbers can be formed f...

How many 3-digit numbers can be formed from the digits 1, 2, 3, 4 and 5 assuming that
repetition of the digits is not allowed ?

Text Solution

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When repetition of digits is not allowed, now unit place can filled in 5 ways. Tenth place be filled in 4 ways and hundreds place in 3 ways.
`therefore` by F.P.C total numbers of ways `=(5) (4) (3) = 60`
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