Q. 33.7( 129 Votes )

How many 3-digit

Answer :

Even number means that last digit should be even,

No. of possible digits at one’s place = 3 (2, 4 and 6)

⇒ No. of permutations=

One of digit is taken at one’s place, Number of possible digits available = 5

⇒ No. of permutations=

Therefore, total number of permutations =3 × 20=60.

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