Question

A bag contains 12 blue balls and x red balls. If one ball is drawn at random, what is the probability that it will be a red ball?

A. x/12
B. 12/x
C. x/12+x
D. 12+x/x

Answer 1

Here ,

Blue balls P(B) = 12

Red balls P(R) = x

total balls P(S) = x+12

Now,

P(red balls)= no. of red balls / total balls

= x/x+12

Answer 2

The probability of drawing a red ball from a bag with 12 blue balls and x red balls is x / (12 + x).

Step-by-step explanation:

To find the probability that a red ball will be drawn from a bag containing 12 blue balls and x red balls, we first need to determine the total number of balls in the bag, which is 12 + x. The probability of drawing a red ball is the ratio of the number of red balls in the bag to the total number of balls in the bag.

Therefore, the probability P(red ball) is given by:

P(red ball) = Number of red balls / Total number of balls = x / (12 + x).

Thus, the correct answer is the probability that a red ball will be drawn is x / (12 + x).