Math, asked by 0h84ddy, 4 months ago

(06.01)A bag contains 25 marbles of the same size that are yellow, green, and purple. The probability of picking a yellow marble is 20%. The probability of picking a green marble is 50%. Determine the probability of picking a purple marble from the bag and then classify the probability of picking a purple marble as likely or not likely to occur.

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Answers

Answered by thakuruttamsing10
20

Assume that total number of marbles in the jar be x

Given that number of yellow marbles in a jar =10

Given that the probability of selecting a green marble = 4/1

Also, the probability of selecting a white marble = 3/1

We know that the total probability =1

Hence, Probability of selecting a yellow marble =1–(Probability of selecting a white marble + Probability of selecting a green marble)

So the probability of selecting a yellow marble =1−( 4/1 + 3/1 )=1− 12/7

= 12/5

--------(i)

But the probability of selecting a yellow marble =

Totalno.ofMarbles

No.ofYellowMarbles

= x/10

∴ 12/5

= x/10

[ from (i) ]

∴ x=24

Hence the total number of marbles =24

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