Abel, Lucky, Bingo are three T.V. channels. A survey shows that 30%, 20%, and 85% of the people watch Abel, Lucky, and Bingo respectively. 20% of the people watch exactly two of the three channels and 5% watch none.

• Where is question Dude ... What I find from this question , u had post incomplete question.
  Total no. of people watch TV =145
• 9 years agoHelpfull: Yes(10) No(3)
• Let no of people who watch Abel alone be = A
  Let no of people who watch Lucky alone be = L
  Let no of people who watch Bingo alone be = B
  Let no of people who watch Abel & Lucky be = X1
  Let no of people who watch Lucky & Bingo be = X2
  Let no of people who watch Abel & Bingo be = X3
  Let no of people who watch all the three be = Y
  Given:
  Total no of people who watch TV =100-5=95 & X1+X2+X3=20
  A+B+C+X1+X2+X3+Y=95
  Also,
  A+X1+X3+Y=30
  B+X1+X2+Y=20
  C+X2+X3+Y=85
  Adding all the above three equations, we get:
  A+B+C+2(X1+X2+X3)+3Y=135
  (A+B+C+X1+X2+X3+Y)+(X1+X2+X3)+2Y=135
  95+20+2Y=135
  2Y=20
  Y=10
• 9 years agoHelpfull: Yes(9) No(0)
• this is the question and options...
  
  Abel, Lucky, Bingo are three T.V. channels. A survey shows that 30%, 20%, and 85% of the people watch Abel, Lucky, and Bingo respectively. 20% of the people watch exactly two of the three channels and 5% watch none.
  32. What % of the people watch all three channels?
  a) 0 b) 5 c) 10 d) 20
• 9 years agoHelpfull: Yes(5) No(0)
• 20
  5% watch none means 95% watch channels
  95-(30+20+85-3*20)=20
• 9 years agoHelpfull: Yes(4) No(0)
• Can u pls tell me ..How total no. of people watch TV= 145 .....???
• 9 years agoHelpfull: Yes(1) No(1)
• the value of people watching all 3 is 20
  percentage is 10
  
• 9 years agoHelpfull: Yes(1) No(0)
• this question is incomplete
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• can anyone give a perfect explanantio?
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• a venn diagram for this wld b more appropriate way of solving this answr...
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