Questions
Total number of 6-digit numbers in which only one digit of 1,3,5,7 and 9 can be repeated and all the five digits 1, 3, 5, 7 and 9 appear is:
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a
526!
b
126!
c
56
d
6!
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Correct option is A
1,3,5,7,9 For digit to repeat we have 5C1choice And six digits can be arrange in 62ways Hence total such number = 562Similar Questions
The total number of 5-digit numbers of different digits in which the digit in the middle is the largest is
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