CAT
Exam
a bag contains 8 white and 4 red balls.5 balls are drawn at random, what is probability that 2 of them are red amd 3 are white
Read Solution (Total 3)
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- probability that 2 red and 3 white balls are drawn is
= (4C2*8C3)/12C5
= (4*3/2*1)*(8*7*6/3*2*1)*(5*4*3*2*1/12*11*10*9*8)
= 14/33 - 12 years agoHelpfull: Yes(6) No(1)
- (4C2*8C3)/12C5
=0.42 - 12 years agoHelpfull: Yes(2) No(1)
- 4C2+8C3/12C5=9/44
- 12 years agoHelpfull: Yes(0) No(0)
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