If number of two-digit numbers which are of the form xy with `y

The number of two digit numbers which are prime :

The number of 5 digit numbers of the form xyzyz in which x < y is

The number of three digit numbers of the form xyz where x>y>z is

The form of a two - digit number?

Generalised form of a two-digit number xy is

The general form of a two digit number 93

Number of 6-digit numbers that can be formed with the digits of the number 112233 is-

The number of 4 digit numbers without repetition that can be formed using the digits 1, 2, 3, 4, 5, 6,7 in which each number has two odd digits and two even digits is