A bag contains 15 balls of which some are white and others are red. iF the probability of drawing a red ball is twice that of white ball find the number of white balls in the bag.
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4
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ʜᴏᴘᴇ ᴛʜɪs ɪs helpful☺✌
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Answered by
1
Answer:
45
Step-by-step explanation:
Let black balls be x
So white balls= 15
So the total balls are 15+x
A.T.Q, x/15+x = 3× 15/15+x
x = 3×15
x = 45
So there are 45 black balls.
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