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How many 3-digit even numbers can be ma...

How many 3-digit even numbers can be made using the digits 1, 2, 3, 4, 6, 7, if no digit is repeated?

Text Solution

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total number of digits = 6
The unit place can be filled with any one of the digits 2, 4, 6.
So number of permutation = `3P_1` = 3
Now, the tens and hundreds place can be filled by remaining 5 digits.
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