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05& b.The probability of selecting a blue marble at random fronsa blue marble at random from a jar that contains only blue, black &green marbles is 1/5 .the probability of selecting a black marble aobability of selecting a black marble at random from the same jar is 74. ifthe jar contains 11 green marbles, find the total no. of marbles in the jar.A die is thrown once Find the nrohabilit101​

Answer»

<P>Step-by-step explanation:

P (blue marble) = 1/5

P (black marble) = 1/4

∴ P (GREEN marble) = 1 – (1/5 + 1/4)

P (green marble) = 11/20

Let TOTAL number of MARBLES be x.

Then.

11/20 × x = 11

⇒ x = 20


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