Mathematics, 27.08.2020 14:01 travisvb
In a survey in a ward of a municipality 30% like to listen radio
and 90% like to watch T. V. out of total adult people and all
who like to listen radio like to watch T. V. too. If the number of
persons who don't like both of these is 240.
Ans: 1440
(i) рдЙрдХреНрдд рддрдереНрдпрд╛рдЩреНрдХрд▓рд╛рдИ рднреЗрдирдЪрд┐рддреНрд░рдорд╛ рдкреНрд░рд╕реНрддреБрдд рдЧрд░реНрдиреБрд╣реЛрд╕реН ред
Represent the above data in a Venn-diagram.
(ii) рдЯреЗрд▓рд┐рднрд┐рдЬрди рдорд╛рддреНрд░ рд╣реЗрд░реНрди рдорди рдкрд░рд╛рдЙрдиреЗрдХреЛ рд╕рдЩреНрдЦреНрдпрд╛ рдкрддреНрддрд╛ рд▓рдЧрд╛рдЙрдиреБрд╣реЛрд╕реН ред
Find the number of persons who like only to watch TV.
Answers: 1
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In a survey in a ward of a municipality 30% like to listen radio
and 90% like to watch T. V. out of...
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