Question

Find the sum of all the 4 digit number that can be formed by 3,4,5,6

Answer 1

we can make the nos with the help of 3,4,5,6 are
3456
3465
3546
3564
3654
3645
4356
4365
4653
4635
4563
4536
5436
5463
5346
5364
5643
5634
6543
6534
6453
6435
6345
6354
add all these no you get the ans
thanks