In a survey of a town, it was found that 65% of the people surveyed watch the news on T.V., 40% read a newspaper and 25% read a newspaper and watch the news on T.V. What per cent of the people surveyed neither watch the news on T.V. nor read a newspa ?->(Show Answer!)

1. In a survey of a town, it was found that 65% of the people surveyed watch the news on T.V., 40% read a newspaper and 25% read a newspaper and watch the news on T.V. What per cent of the people surveyed neither watch the news on T.V. nor read a newspaper?

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By: anil on 05 May 2019 02.01 am

Let the total number of people in the town be $$100x$$ Now, 65% of the people surveyed watch the news on T.V., 40% read a newspaper and 25% read a newspaper and watch the news on T.V. => $$a+b = 65x$$ $$b+c = 40x$$ $$b = 25x$$ Solving above equations, we get : => $$a = 40x$$ and $$c = 15x$$ Also, $$a+b+c+d = 100x$$ => $$40x + 25x + 15x + d = 100x$$ => $$d = 20x$$ $$ herefore$$ 20% of the people neither watch news on TV nor read the newspaper.

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