An urn contains 3 red pens, 4 green pens and 6 yellow pens. The number of ways of drawing 4 peas fro

Question

An urn contains 3 red pens, 4 green pens and 6 yellow pens. The number of ways of drawing 4 peas from the urn if at least one red pen is to be incladed in the draw is

Professor PC Thomas Classes · Answer

Total ways - ways with no red pens.