For an upcoming charity event, a male vocalist has agreed to sing 4 out of 6 “old songs” and 2 out of 5 “new songs.” How many ways can the singer make his selection?
Choose the correct option.
A) 25
B) 50
C) 150
D) 480
E) 600
Number of ways the vocalist can sing "old songs" = 15064=15   Number of ways the vocalist can sing "new songs" = 15052=10   Therefore total number of ways the singer can make the selection = (Number of ways the vocalist can sing "old songs")*(Number of ways the vocalist can sing "new songs")= 15*10= 
<gadget id="calculator">15*10</gadget>
<output>150</output>
150   Answer: 150
<result>C</result>
For an upcoming charity event, a male vocalist has agreed to sing 4 out of 6 “old songs” and 2 out of 5 “new songs.” How many ways can the singer make his selection?