There are 34 juniors and 45 seniors in the auditorium. After x juniors and x+5 seniors left the auditorium, the probability of selecting a junior at random becomes 2/5. Find the value of x. O 15 11 O 22 6.
There are 34 juniors and 45 seniors in the auditorium. After x juniors and x+5 seniors left the auditorium, the probability of selecting a junior at random becomes 2/5. Find the value of x. O 15 11 O 22 6.
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Transcribed Image Text:There are 34 juniors and 45 seniors in the
auditorium. After x juniors and x+5 seniors
left the auditorium, the probability of
selecting a junior at random becomes 2/5.
Find the value of x.
O 15
O 11
O 22
6.
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