A bag contain 8 white balls and 6 red balls. The probability of drawing two balls of same colour is

a. 21/91
b. 13/112
c. 43/91
d. 41/91

• (8c2+6c2)/14c2=43/91
• 13 years agoHelpfull: Yes(17) No(0)
• probability of drawing two balls of white colour is (8/14)*(7/13) = 56/182
  probability of drawing two balls of red colour is (6/14)*(5/13) = 30/182
  
  The probability of drawing two balls of same colour is 56/182 + 30/182 = 86/182 = 43/91
• 13 years agoHelpfull: Yes(17) No(5)
• ans=43/91
  E(n)=8c2+6c2
  s(n)=14c2
  P(n)=E(n)/S(n)=43/91
• 12 years agoHelpfull: Yes(5) No(0)
• (8C2+6C2)/14C2=43/91
• 12 years agoHelpfull: Yes(0) No(0)
• c. 28/91+15/91
• 9 years agoHelpfull: Yes(0) No(0)
• 43/91, Its 8c2+6c2/14c2
• 8 years agoHelpfull: Yes(0) No(0)
• n(S)={14C2}= 91
  n(E)={8C2+6C2}= 43
  P(E)= 43/91
• 7 years agoHelpfull: Yes(0) No(0)