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How many 6 digit even numbers can be formed from the digits 1,2,3,4,5,6,7 so that the digit should not repeat and the second last digit is even
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- last two digit can be 2/4/6 => 3P2
remaining 4 places can be filled in 5P4 ways
total no. = 3P2 * 5P4 = 720 - 10 years agoHelpfull: Yes(2) No(0)
- since there is 6 digits to be formed using 1,2,3,4,5,6,7
so consider the 6 places(------)
6!=720 ways can be formed - 10 years agoHelpfull: Yes(0) No(0)
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