RJ Police PC · Free quiz
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Question 1 of 5
HARDIn a district, out of 500 people surveyed, 280 read newspaper A, 240 read newspaper B, 150 read newspaper C, 100 read both A and B, 80 read both B and C, 70 read both A and C, and 40 read all three newspapers. How many people read at least one newspaper?