Thangam and Pandiyamma go for an interview for two vacancies. The probability for the selection of Thangam is 1/3 and whereas the probability for the selection of Pandiyamma is 1/5. What is the probability that none of them are selected?

A. 3/5
B. 7/12
C. 8/15
D. 1/5

• Answer: c
  Probability of thangam being selected= 1/3 and him not being selected = 1-1/3=2/3
  Probability of pandiyamma being selected=1/5 and him not being selected= 1-1/5=4/5
  Probability that both are not selected = 2/3*4/5=8/15
• 7 years agoHelpfull: Yes(22) No(1)
• c-2/3*4/5=8/15
• 7 years agoHelpfull: Yes(2) No(1)
• 8/15
  prob of thangam not selected is 1-1/3
  prob of praduman not selected is 1-1/5
  so prob of not selecting both(2/3*4/5)=8/15
• 4 years agoHelpfull: Yes(1) No(0)
• 1-1/3==2/3
  1-1/5==4/5
  (2/3)*(4/5)==8/15
• 7 years agoHelpfull: Yes(0) No(0)
• Ans 8/15
  the probability of thangam not selecting is 2/3 and the probability of thangam not selecting is 4/5
  let the probability be (2/3)+(4/5)=8/15
• 7 years agoHelpfull: Yes(0) No(4)
• answer is 8/15
• 7 years agoHelpfull: Yes(0) No(0)
• 2/3*4/5=8/15
• 7 years agoHelpfull: Yes(0) No(1)
• t=1/3;p=1/5ans=8/15
• 6 years agoHelpfull: Yes(0) No(1)
• p(t)=1/3
  p(p)=1/5 p(not selected t)=1-1/3=2/3
  p(not selected t)=1-1/5=4/5
  p(none selected)=2/3*4/5=8/15
• 5 years agoHelpfull: Yes(0) No(0)
• answer is (c) 8/15
• 4 years agoHelpfull: Yes(0) No(0)
• 8/15
  2/3*4/5=8/15
• 4 years agoHelpfull: Yes(0) No(0)
• probablity of thangam and pandiyamma not getting selcted is
  1-1/3=2/3 & 1-1/5=4/5
  given that no one should get selected (thangam and pandiyamma )
  now,
  2/3x4/5=8/15
  multiplication is done because and is used in bracket.
• 4 years agoHelpfull: Yes(0) No(0)
• chance of not selection = 1- chance of selection
  so that Thangam not being selected = 1-1/3=2/3
  Pandiyamma not being selected= 1-1/5=4/5
  Probability that both are not selected = 2/3*4/5=8/15
• 4 years agoHelpfull: Yes(0) No(0)