Asked by junu

a box contain 5red balls,6 white balls,and 6black ball.two balls are drown but not replaced.find the probsbilty that both balls are of the same colour

Answers

Answered by MathMate
Total number of balls = 5+6+6=17

P(RR)=Probability of two reds
=(5/17)*(4/16)
P(WW)=(6/17)*(5/16)
P(BB)=(6/17)*(5/16)

Probability of two same coloured balls
=P(RR)+P(WW)+P(BB)
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