Instructions
Study the following diagram and answer questions based on it.
Question 69
How many people who travel by train also travel by car or bus but not cycle?
Solution
people who travel by train also travel by car = 20 + 10 = 30
people who travel by train also travel by bus = 50 + 10 = 60
people who travel by train also travel by car or bus but not by cycle = 30 + 60 - 10 = 80 (10 is common in both).
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