Answer:
who wins four tosses first is the winner.
possible cases-7 tosses, 6 tosses, 5 tosses, 4 tosses
We get cases of Win of Head first-4 tosses
All 4 must be Head
Number of ways = 1
5 tosses-5th must be Head
there are 3 Head out of 4 in ⁴C₃ = 4 Ways
6 tosses-6th must be Head
there are 3 Head out of 5 in ⁵C₃ = 10 Ways
7 tosses-7th must be Head
there are 3 Head out of 6 in ⁶C₃ = 20 Ways
Cases of Head wins = 1+ 4 + 10 + 20 = 35
similarly cases when Tails Wins = 35
Total Possible cases = 35 + 35 = 70
70 is total number of possible ways in which the bet can play out.
Step-by-step explanation:
I hope that this helps u out..
