What is the sum of the units digits of all the multiples of 3 between 0 and 50?
+639 3 | 6 | 9 | 12 | 15 | 18 | 21 | 24 | 27 | 30 | 33 | 36 | 39 | 42 | 45 | 48
Add up all the units digits to get the sum.
EDIT: What did I do wrong to deserve these downvotes, come on guys...
