All the six distinct digit numbers made by digits taken from the set {1,2,3,4,5,6,7 are arranged in descending order. The digit at hundreds place in 3001th number is
A) 3 B) 4 C) 5 D) 6

The number of 5 digit numbers which are divisible by 4, with digits from the set {1,2,3,4,5} and the repetition of digits is allowed,is

Mr. A randomly picks 3 distinct numbers from the set {1, 2, 3, 4, 5, 6, 7, 8, 9} and arranges them in descending order to form a three digit number. Mr. B randomly picks 3 distinct numbers from the set {1, 2, 3, 4, 5, 6, 7, 8} and also arranges them in descending order to form a 3 digit number. Q. The probability that A and B has the same 3 digit number is :

How many three-digit number can be generated from 1, 2, 3, 4, 5, 6, 7, 8, 9, such that the digits are in ascending order?

The sum of all 4 digited even numbers thatcan be formed from the digits 1,2,3,4,5 is

The number of 4 digit numbers that can be made using exactly two digits out of 1,2,3,4,5,6 and 7

The sum of all 4 digit even numbers that can be formed from the digits 1,2,3,4,5 is

All the 7 digit numbers containing each of the digits 1,2,3,4,5,6,7 exactly once,and not divisible bys are arranged in the increasing order.Find the (2004)^(th) number in this list.