Question

cate numere naturale de forma a4b1 ( cu bara deasupra) exista?

Answer 1

8401,8401,7401,6401,5401,4401,3401,2401,1401

9411,8411,7411,6411,5411,4411,3411,2411,1411

9421,8421,7421,6421,5421,4421,3421,2441,1441

9431.........1431

9441........1441

9451.......1451

9461......1461

9471......1471

9481.....1481

9491....1491

_____________

10x9=90 numere

Answer 2

1401,1411,1421,1431,1441,1451,1461,1471,1481,1491,2401,2411,2421,2431,2441,2451,2461,2471,2481,2491,3401,3411,3421,3431,3441,3451,3461,3471,3481,3491,4401,4411,4421,4431,4441,4451,4461,4471,4481,4491,5401,5411,5421,5431,5441,5451,5461,5471,5481,5491,6401,6411,6421,6431,6441,6451,6461,6471,6481,6491,7401,7411,7421,7431,7441,7451,7461,7471,7481,7491,8401,8411,8421,8431,8441,8451,8461,8471,8481,8491,9401,9411,9421,9431,9441,9451,9461,9471,9481,9491