Question

the three counters shown in the table are used for a board game. If the counters are tossed , how many ways can at least one counter with side A occur?

Answer 1

Total ways = {AAA, AAB, ABA, BAA, ABB, BAB, BBA, BBB}

Ways at least one counter with side A = {AAA, AAB, ABA, BAA, ABB, BAB, BBA}

Hence, the number of ways at least one counter with side A = 7.