HELP HELP HELP HELP HELP MATH GENIUSES, GODS AND GODDESSES

Suppose you are given 10 green balls labeled from 1-10, 5 red balls also labelled from 1-5 and 7 yellow balls labelled from 1-7. All of them are put in a bag and and you are asked to pick a ball once.

1. What is the probability that you will get a red ball labelled with an even number or a yellow ball labelled with an odd number?

PLEASE NO NONSENSE​