Probability
Aptitude

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Q.

A box contains 9 red toys, 7 green toys and 9 blue toys. Each ball is of a different size. The probability that the red ball being selected is the smallest red toy, is:

 A.

1/9

 B.

2/21

 C.

1/25

 D.

6/25

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Solution:
Option(A) is correct

Since, there are 9 red toys and all of them are of different sizes, the probability of choosing the smallest among them is 1/9


(3) Comment(s)


Anu
 ()

Hi answer should be 1/25 since , first probability of selection 9 red balls from 25 balls should be taken and then probability of selection of smallest red ball i.e (9/25 )*(1/9) = 1/25 .

Admin Please correct .



Pakodi
 ()

Hey gagan,

He said "red ball being selected" in question. I think 1/9 is the right answer.



Gagan
 ()

Answer should be 1/25

Because we need to select one ball randomly

It can be red,green,blue.