A bag contains 8 red balls and x blue balls. The ratio of the probability of getting a red ball against blue ball is 2:5. Find the number of blue balls.
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A bag contains 8 red balls and x blue balls. The ratio of the probability of getting a red ball against blue ball is 2:5. Find the number of blue balls.
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Step-by-step explanation:
total no. of balls = 8 + x
odd against = no. of red/ no. of blu balls
8/x
8/x = 2/5
2x = 40
x = 20
thus no. of blue balls is 20=x
Answer:
8:x=2:5 then we solve this question so x=20
This is the answer
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