If you have 5 New Year greeting cards and you want to send them to 3 of your friends, in how many ways can this be done?  Choose the correct choice from the following
A) 60	B) 720	C) 20	D) 70	E) None
Solution   We have to find number of permutations of 3 objects out of 5 objects. This number is 5P3=5(5-1)(5-2)=5*4*3= 
<gadget id="calculator">5*4*3</gadget>
<output>60</output>
60   60nswer 60
<result>A</result>
If you have 5 New Year greeting cards and you want to send them to 3 of your friends, in how many ways can this be done?