Question
A girl appeared in 5 exams, each having a maximum of 200
marks. Her scores in the exams were 180, 150, 165, 190, and 175. She randomly tells her marks of one subject to her friend. What is the probability that the marks she shares are of the exam in which she scored more than 80%?Solution
ATQ,
80% of 200 = 0.8 × 200 = 160
The number of exams where she scored more than 160 marks = 4
So, the required probability = (4/5) = 0.8
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