16 business executives and 7 chairmen meet at a conference. If each business executive shakes the hand of every other business executive and every chairman once, and each chairman shakes the hand of each of the business executives but not the other chairmen, how many handshakes would take place?  Choose the correct choice from the following:
A) 144  B) 131  C) 232  D) 90  E) 45
there are 16 business exec and in each handshake 2 business execs are involved.   hence 16C2=120   Also, each of 16 exec will shake hand with every 7 other chairmen for total of 112 handshake.   total=120+112= 
<gadget id="calculator">120+112</gadget>
<output>232</output>
232   ANS: 232
<result>C</result>
16 business executives and 7 chairmen meet at a conference. If each business executive shakes the hand of every other business executive and every chairman once, and each chairman shakes the hand of each of the business executives but not the other chairmen, how many handshakes would take place?