Answer:
34%.
Step-by-step explanation:
Chance he gets a hit of the weather is nice = 0.40 * 0.70 = 0.28.
or if its windy the chance he gets hit is 0.10 * 0.20 = 0.02.
Chance its cold and he gets a hit = 0.2 * 0.2 = 0.04,
So the chance he gets a hit = 0.28 + 0.02 + 0.04
= 0.34 = 34%.