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How many 2-digit even numbers can be formed from the digits 1, 2, 3, 4, 5 if the digits can be repeated?

How many 2-digit even numbers can be formed from the digits 1, 2, 3, 4, 5 if the digits can be repeated?

Grade:

1 Answers

SHAIK AASIF AHAMED
askIITians Faculty 74 Points
6 years ago
Hello student,
for a number to be even its unit digit should be even
So there are 2 ways for unit digit
As digits can be repeated there are 5 ways for tens place
Hence total number of ways is 5*2=10.
Thanks and regards
Shaik Aasif
askIITians faculty

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