Igcse Model Questions Vol1 2020 Mathematics Question 20
Practice objective / multiple choice question 20 from the 2020 Igcse Model Questions Vol1 Mathematics examination.
In a school, 60% of the students study mathematics and 40% study biology. Among the mathematics students, 25% also study physics. Among the biology students, an unknown proportion study physics, but overall 20% of all students study physics. If a randomly selected student is known to study physics, what is the probability that they also study mathematics? Express your answer as a fraction in lowest terms.
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About This Question
This is Igcse Model Questions Vol1 2020 Mathematics Question 20. It is one of the objective questions from the 2020 Igcse Model Questions Vol1 Mathematics examination.
Difficulty level: Hard .
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