At a school there are 40 girls and 20 boys. Everyone has either a pair of headphones or earbuds but not both 25 students have ear buds and 15 of them are girls if a student from the school is randomly

At a school there are 40 girls and 20 boys. Everyone has either a pair of headphones or earbuds but not both 25 students have ear buds and 15 of them are girls if a student from the school is randomly picked what is the probability that the student is a boy?

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