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In a survey of 60 people, it was found that 25 people read newspaper H, 26 read newspaper T, 26 reas newspaper I, 9 read both H and I, 11 read both H and T, 8 read both T and I, 3 read all three newspaper, Find :(i) the numbers of people who read at least one of the newspapers.(ii) the numbers of people who read exactly one newspaper. |
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Answer» In a survey of 60 people, it was found that 25 people read newspaper H, 26 read newspaper T, 26 reas newspaper I, 9 read both H and I, 11 read both H and T, 8 read both T and I, 3 read all three newspaper, Find : (i) the numbers of people who read at least one of the newspapers. (ii) the numbers of people who read exactly one newspaper. |
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