Question

a bag has some green pens and 12 red pens .A pen is taken out of the bag and the probability of that the pen is red is 3/5. The number of green pen in the bag is
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Answer 1

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Answer 2

Answer:

Step-by-step explanation:

Let the no. of green pen be x

No. Of red ball=12

Total ball n(s)=x+12

P(getting red ball)=12/x+12

3/5=12/x+12

3x+36=60

3x=60-36

3x=24

x=24/3

x=8

Hence no. Of green pen is 8

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