Please scrutinize the following sets of integers:

S1 (2, 5, 8)
S2 (22, 55, 888, 201)
S3 (232, 88781, 20)
S4 (1, 635, 5, 868, 781, 20 ,115)
S5 (26, 3 ,19, 110, 35, 544, 82, 68, 781, 207)
S6 (3 ,14, 15, 926, 535)

I am choosing one random member from each set :
e.g. 2, 888, 20, 1, 544 and 926.

Sum of those numbers apparently ends by 1.

How many distinct results generated this way will terminate by 1?

How many by a zero digit?

Any comments?

(In reply to re(2): computer solution by Charlie)

ok. I have thought that this might be the case, but found it easier

to ask than to add up the quantities to see if the total is 1260.

Posted by Ady TZIDON on 2014-02-19 03:28:13