A bag contains two different colored balls of black and white. If the probability of picking two black balls is 1/7 and the number of white balls is 9, then find the number of balls in a bag.

asked by guest
on Apr 04, 2025 at 9:13 am



Mathbot Says...

I wasn't able to parse your question, but the HE.NET team is hard at work making me smarter.


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