Question

Rajesh has forgotten his combination of lock number he knows that it is a four digit odd number which is divisible by 3 also the ones digit and hundred digit are the same 10 digit and thousand digit are same too the tens digit is smaller than ones digit he is pretty sure that there are no zeros how many number would satisfied this condition?

Answer 1

Hey there,
There are 12 conditions
1. 1212
2. 1515
3. 1818
4. 2424
5. 2727
6. 3636
7. 3939
8. 4545
9. 4848
10. 5757
11. 6969
12. 7878
  Hope it helps..

Answer 2

There are 12 numbers : 1212,1515,1818,2424,2727,3636,3939,4545,4848,5757,6969,7878