Number of natural number upto one lakh, which contains 1,2,3, exactly once and remaining digits anytime is

The number of 5 digits numbers that contain 7 exactly once is

The number of 5 digited numbers that contain 7 exactly once is

The number of five digit numbers that contains 7 exactly once is equal to

The number of four digit natural numbers which contains exactly two distinct digits,is (A) 567(B)576(C)657(D)675

The number of 6 digit numbers that contains 6 exactly once is _________ .

The number of 6 digit numbers that contains 6 exactly once is _________ .

If the number of 6 digit numbers which contain exactly 4 different digits such that exactly one digit repeats is k(7!) then find k

The total number of six-digit natural numbers that can be made with the digits 1,2,3,4, if all digits are to appear in the same number at least once is a.1560 b.840 c.1080 d.480