In a Container,there are 2 green marbles and 2 red marbles. You randomly pick two marbles . What is the probability that both of them are green ? - Prothom Sir | প্রথম স্যার

In a Container,there are 2 green marbles and 2 red marbles. You randomly pick two marbles . What is the probability that both of them are green ?

Created: 10 months ago | Updated: 4 months ago

1/2

১/৩

1/6

1/8

None of these

Job Solution Exim Bank Ltd Exim Bank Ltd - Officer - 03.04.2009 গণিত

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Given: 2 green and 2 red marbles
Required: Probability that 2 marbles picked both are red

Initially we have to pick 1 red from a total of 2 green and 2 red marbles = 2/4
After one red has been picked, we need to pick 1 red from a total of 2 green and 1 red marbles = 1/3

P(Both red) = (2/4)*(1/3)

= 2/12

= 1/6

1 year ago

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