In case P there are 2 red pens and 3 blue pens, in case Q there is 1 red pen and 4 blue pens. A case is randomly picked, what is the probability of picking up a red pen from case Q? Choose the correct choice from the following options:	A) 1/10.	B) 4/5.	C) 3/10.	D) 3/5.	E) 2/3.
Probability of picking up one case out of two= 1/2   probability of picking 1 red pen from case Q= 1/5   Hence the desired probability= 1/2*1/5= 1/10   1/10. is the answer
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In case P there are 2 red pens and 3 blue pens, in case Q there is 1 red pen and 4 blue pens. A case is randomly picked, what is the probability of picking up a red pen from case Q?