Question

Question 5: A bag contains x+5 yellow balls, 2x+1 blue balls and some red balls. If two balls are drawn one after another from the bag without replacement, then the probability of getting a red and blue ball is 1/6. The total balls in the bag is 4(x+2). Find the number of red balls.​

Answer 1

Step-by-step explanation:

first we have to find value of X

Total balls is 4(x+2)

4x + 8

x = 8-4

x = 4

so total balls are 4(4+2)

4*6

24 total number of balls

yellow ball x+5

4+5 =9 yellow balls

blue ball is 2x+1

2*4+1

8+1 = 9 blue balls

red balls is total balls - (yellow+blue balls)

24-(9+9)

24-18 = 6 red balls