📅 NSB Round Robin 2020🎓 HS🔄 Round 4#️⃣ Question 11❓ TOSS-UP✍️ Short Answer
A college class contains 15 freshmen, 25 sophomores, and 12 juniors. One of the students receives a phone call during the middle of the class. What is the probability that the ringing phone belongs to a junior?
✔️Answer:3/13
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