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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
(i) repetition of the digits is allowed?
(ii) repetition of the digits is not allowed?

Text Solution

Verified by Experts

(i) `---`
`= 5*5*5= 125`
(ii) `---`
`5*4*3 = 60`
answer
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