there are 30 cities in a country. Each city has 4 highways coming out of it. How many highways connecting 2 cities are there in
1 answer:
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Answer:
1/13
Step-by-step explanation:
There exactly 7 seniors 10 Juniors, 12 sophomores and 11 freshman
in which 4 of the juniors are Female , and exactly 2 of the sophomores are male. Therefore,
10-4= 6 juniors are male
12-2 = 10 female sophomores
Total = 7+10+12+11= 40 students
P(male junior then female soph.)=
P(female soph then male junior)=
Therefore the final answer will be = 1/26 +1/26= 1/13