Question

A bag contains 4red balls, 5 white balls& 6black balls. What is the probability of drawing a white ball from a bag?

Answer 1

Answer:

48/91

Explanation:

6 Red, 5 Black , 4 White

Total 15 balls out of which 4 balls to be drawn.

Total combinations= 15c4 = 1365 ways

There will be 3 possibilities.

Two red balls, 1 black , 1 white

2 Red….. 6c2 =15, 1black……. 5c1= 5, 1 white………. 4c1=4

Total= 15*5*4 =300

Two black balls, 1 red , 1 white

2 Black….. 5c2 =10, 1 red……. 6c1= 6, 1 white………. 4c1=4

Total= 10*6*4= 240

Two white balls, 1 red, 1 black

2 White….. 4c2 =6, 1 black……. 5c1= 5, 1 red………. 6c1=6

Total= 6*5*4 =180

So the required probability is

(300+240+180)/1365 = 720/1365

48/91

Answer 2

${\huge{\huge{\bigstar{\underline{\underline{\mathrm{\red{QuesTion:-}}}}}}}}$

A bag contains 4red balls, 5 white balls& 6black balls. What is the probability of drawing a white ball from a bag?

${\huge{\huge{\bigstar{\underline{\underline{\mathrm{\green{AnsWer:-}}}}}}}}$

red balls=4

white balls=5

black balls=6}

4+5+6=15

$\frac{5}{15} = \frac{1}{3}$

your answer is

$\frac{1}{3}$

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