The number of 6 digit numbers that can be made with the digits 1,2,3 and 4 and having exactly 2 pairs of digits is,. 1)480. 2)540 3)1080 4)1240

Q. The number of 6-digit numbers that can be made with the digits $1,2,3$ and $4$ and having exactly two pairs of digits, is

Q. The number of 6-digit numbers that can be made with the digits 1,2,3 and 4 and having exactly two pairs of alike digits is

Q. How many five-digits numbers can be made having exactly two identical digits?

Q. Consider all the six digit numbers that can be formed using the digits $1,2,3,4,5$ and $6$, each digit being used exactly once. Each of such six digit numbers have the property that for each digit, not more than two digits smaller than that digit appear to the right of that digit. Find the number of such six digit numbers having the desired property.

Q. The number of $6$-digit numbers that can be made with the digits $0,1,2,3,4,5$, so that even digits occupy odd places, is