David has a bag that holds 18 pens. 5 of the pens are ball point, 4 are gel pens, and 9 are felt tip marker pens. He reaches into the bag to pull out one pen. If every pen has an equal chance of being pulled out of David’s bag, what is the probability that he will pull out a gel pen?

Question

kropot72 · Answer

Probability of drawing a gel pen is the following fraction:

      Number of gel pens
---------------------------
Total number of pens of all types

anonymous · Answer

4/18

ganpat · Answer

So, as kropot72 said, 

4/ 18.... = 2/9

perfect..

kropot72 · Answer

@Taylor_1314 Good work. You got it right :)

anonymous · Answer

so you simplify it?

anonymous · Answer

thanks guys ha

kropot72 · Answer

Simplifying is good!

ganpat · Answer

yes, always bring it to lowest possible fraction.. because that would be the answer..