In a town 65% people watched the news on television , 40% read a newspaper and 25% read a newspaper and watched the news on television also. What percent of the people neither watched the news on television nor read a news paper ?

A) 5 B) 10 C) 15 D) 20

• no of people only watching is :65-25=40
  no of people reading is :40-25=15
  therefore total no people busy is :40+15+25+80
  now 100-80=20
• 8 years agoHelpfull: Yes(5) No(0)
• WATCHED ON NEWS IN TELEVISION T=65
  READ A NEWS PAPER N=4O
  BOTH READ AND WATCH R+W=25
  65+40-25=80
  TOTAL=100-80=20
• 7 years agoHelpfull: Yes(2) No(0)
• no of people only watching news on television=T=65
  no of people reading newspaper=N=40
  no of people only watching news on television and reading newspaper=T AND N=25
  so, T OR N=T + N - (T AND N)=65+40-25=80
  so, he people neither watched the news on television nor read a news paper =100-80=20
  
• 7 years agoHelpfull: Yes(0) No(0)