1
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Question

# A bag contains a number of marbles of which 80 are red, 24 are white and the rest are blue. If the probability of randomly selecting a blue marble from this bag is 15, how many blue marbles are there in the bag?

A
25
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B
26
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C
27
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D
28
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Solution

## The correct option is B 26A bag contains a number of marbles of which 80 are red, 24 are white and the rest are blue. If the probability of randomly selecting a blue marble from this bag is 15The Probabaility of red marble is P(E)=15=bluered+blue+whiteblue80+24+bluefrom Above we get4 blue =104blue =26

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