Question

A bag contain 20 balls out of which x balls are blue. If one ball is drawn at random find the probability of
drawing a blue ball. If 10 more blue balls are added the bag and a ball is drawn at random then the
probability of getting a blue ball is double the probability obtained before. Find x.
​

Answer 1

Answer:

Probability of getting blue ball=x/20

balls in bag=x+10

(x+10)/20=x/10

20x=10x+100

x=10

Answer 2

Answer:

Probability of getting blue ball=x/20

balls in bag=x+10

(x+10)/20=x/10

20x=10x+100

x=10

i hope that this helps uuuuuu

Step-by-step explanation: