Write all possible 3- digit numbers (without repeating the digits) , by using the digits.
(i)6,7,5
(ii) 9,0,2

Solution:

(i)  Possible three digit number using the digits 6 , 7 , 5

Take 5 as first number,

567 , 576

 Take 6 as first number,

657 , 675

Take 7 as first number,

756 , 765

So,   567 , 576 , 657 , 675 , 756 , 765  are the Possible three digit number using the

digits 6 , 7 , 5

ii)Possible three digit number using the digits 9 , 0 , 2

Take 2 as first number,

 209 , 290

Take 9 as first number,

902 , 920

We cant take 0 as first number, because 092 , 029 are two digit number.

So,  209 , 290 , 902 , 920  are the Possible three digit number using the digits 9 , 0 , 2