Thirty days are in September, April, June
and November. Some months are of thirty one
days. A month is chosen at random. Then its
probability of having exactly three days less
than maximum of 31 is
A. 15/16 B.1 C.3/48 D.None of these

• Ans= 3/48
  
  Sol: Prob(Getting Feb month of 28 days) = Prob(selecting non leap year) X Prob(Selecting feb month after non leap year has chosen)
  
  Prob(Getting Feb month of 28 days) = (3/4) x (1/12)
  = 3/48
  (Option C)
• 10 years agoHelpfull: Yes(44) No(5)
• Ans=1/12.
• 10 years agoHelpfull: Yes(7) No(7)
• if detail about year is not given so why we consider leap or non leap
  y not 1/12 is ans
• 9 years agoHelpfull: Yes(2) No(0)
• 3/48 is the ANS
• 10 years agoHelpfull: Yes(1) No(0)
• Yes the ans Is none of these and it is 1/12..
• 9 years agoHelpfull: Yes(1) No(0)
• three days less than maximum of 31 days
  31-3=28 i.e month of feb.
  so prob is 1.
• 10 years agoHelpfull: Yes(0) No(10)
• Generally,there is information about year is not given so,we assume that in particular year having february 28 days.
  so, prob=1/12
  
• 10 years agoHelpfull: Yes(0) No(5)