(J.A.C(J.A.C12. How many numbers between 100 and 1,000 can be made wit

1.	(J.A.C(J.A.C12. How many numbers between 100 and 1,000 can be made with the digits 1,2,3,4,5,6,7,8,9?1.Te
Answer» 991 is the answer because The numbers range from 100 to 999 are 3 digit numbers. There is no restriction. Any digit can appear any number of times. So ways of selecting 3 digits out of 7 digits : 999= 729

(J.A.C(J.A.C12. How many numbers between 100 and 1,000 can be made with the digits 1,2,3,4,5,6,7,8,9?1.Te

Answer»

991 is the answer because

The numbers range from 100 to 999 are 3 digit numbers. There is no restriction. Any digit can appear any number of times.

So ways of selecting 3 digits out of 7 digits : 9*9*9= 729