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A box has x orange balls, 2x grey balls and 9 white… | StemPy Lab
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A box has x orange balls, 2x grey balls and 9 white balls. The probability of a white ball is 1/4. How many orange balls are there?
Mathematics
Hard
High School (9–10)
General
Statistics and Probability › Probability
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Created by
StemPy Lab
A box has
x
x
x
orange balls,
2
x
2x
2
x
grey balls and
9
9
9
white balls. The probability of a white ball is
1
4
\dfrac{1}{4}
4
1
. How many orange balls are there?
18
18
18
12
12
12
9
9
9
3
3
3
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