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The probability a red marble selected at...

The probability a red marble selected at random from a jar containing p red, q blue and r green marbles is

A

`(q)/(p+q+r)`

B

`(p)/(p+q+r)`

C

`(p+q)/(p+q+r)`

D

`(p+r)/(p+q+r)`

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The correct Answer is:
B
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