A speak truth in 80% cases and B speaks truth in 60% cases..find the probability to tell the truth at the same time

• 8/10 x 6/10 = 12/25 ... i guess! Not sure though!
• 10 years agoHelpfull: Yes(1) No(0)
• P(A or B) = P(A) + P(B) - P(A and B)
  Or, P(A and B)= P(A) + P(B)- P(A or B)
  = 0.8 + 0.6 - 0.8
  = 0.6
• 10 years agoHelpfull: Yes(0) No(3)
• 100-80=20... 100-60=40.... now.. 100-(40+20)=40% ans.
• 8 years agoHelpfull: Yes(0) No(1)