In a survey of 60 people, it was found that 25 people read newspaper H, 26 read newspaper T, 26 read newspaper 1, 9 read both H and 1, 11 read both H and T, 8 read both T and 1, 3 read all three newspapers. Find: the number of people who read exactly one newspaper.
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koi mistake ho to batana
ist part ka answer chiye to batana
mai bhi 11 mai hu sis ^_^
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Total number of people = 60
Total number of people who read H = 25
Total number of people who read T = 26
Total number of people who read 1 = 26
Total number of people who read H and 1 = 9
Total number of people who read H and T = 11
Total number of people who read T and 1 = 8
Total number that read all 3 = 3
Find the number of people who read 1 newspaper only:
Total number of people who read H only = 25 - 9 - 11 - 3 = 2
Total number of people who read T only = 26 - 11 - 8 - 3 = 4
Total number of people who read 1 only = 26 - 9 - 8 - 3 = 6
Total number of people who read only 1 newspaper = 2 + 4 + 6 = 12
Answer: 12 people read 1 newspaper only.
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