Question: PLEASE HELP!! IM SO CONFUSED! This is a question from my complex counting techniques homework and I'm stuck, please explain how you got your solution!
PLEASE HELP!! IM SO CONFUSED! This is a question from my complex counting techniques homework and I'm stuck, please explain how you got your solution!

Question 21 (2 points) You have forgotten the combination to the lock for your locker. The combination consists of three different numbers from the set of 30 different numbers on the face of the lock. (Type your full solution into the text box provided OR attach a pdf/jpg copy of your hand-written solution.). "a ) What is the maximum number of combinations you would have to try to find your combination? b) If it takes 30 s to try each combination, how long it would take, on average, to find the right one
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