probability Q

[cuspidarrow]

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Could someone be kind enough to solve this probability question?

If there are 4 red socks and 6 green socks in a container, what is the probability of picking 2 red socks simultaneously from the same container?

The answer I came up with is 4/25, but apparently it's wrong since it wasn't even one of the answer choices on the DAT.

Thanks a bunch!

 

[x-linked]

its 2/15

 

[Awara]

X linked is right but here is the explanation for this q.

Probability of picking a Red rock the first time is 4/10.
Probability of picking the second red rock is 3/9.
probablitty of two events occuring simultaneously is prob. of event 1 times prob. of event 2.
Possibility of picking two in a row is (4/10)*(3/9) = 2/15.