Question

026) A box contains 22 balls out of which x
are black if one ball is dreun at randon
what is the probability that it will be a
black ball. If 12 more black balls are
put in box, the prob. of drawing a black
ball now is double of what it was before
Find the value of x.
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Answer 1

Answer:

Hope this helps you

2x=22+12

X=34/2

X=17