Question

The number of numbers lying between 100 and 1000 can be formed with the digits 1, 2,3,4,5,6,7,8​

Answer 1

Answer:

Hence the total number lying between 100 and 1000 which can be formed with digits 0, 1, 2, 3, 4, 5, 6, 7 are 294 numbers i.e. 8P3−7P2.