Question 1187037: a large college buys red and green pens in the ratio of 1:2. the college has 3 supplies for these pens. supplier A provide 7% of the red pens and 4% of the green pens. the reminder of the green pens come from suppliers B and the reminder of the green pens come from supplier C. the college know that 20% of the pens supplied by A, 145% of those supplied by B and 10% of those supplied by C are defective. the pens are all store together in a box . A pen was picked at random.
(a) find the probability that the pen is defective
(b) if it was defective, find the probability that the defective pen was supplied by A
Answer by ikleyn(52782)   (Show Source):
You can put this solution on YOUR website! .
In your post, "reminder" should be read as "remainder" everywhere.
Also, 145% mentioned in the post, is an IMPOSSIBLE percentage, signaling a FATAL ERROR,
which makes the solution IMPOSSIBLE.
Fix your error and re-post.
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