Question

How many four digit numbers greater than 2300 can be formed with the digits 0 1 2 3 4 5 and 6 no digit being repeated in any number?

Answer 1

5432, 4120, 3541, 2543, 5327 are the four digit numbers more noteworthy than 2300 can be framed with the digits 0 1 2 3 4 5 and 6 no digit being rehashed in any number.

The hundreds place can be topped off by any of the numbers 3,4,5,6 of every 4 different ways.

So the staying two spots can be topped off in 5P2 different ways.