49 members attended the party. In that 22 are males, 17 are females. The shake hands between males,
females, male and female. Total 12 people given shake hands. How many such kinds of such shake hands are
possible?
a)122 b)66 c)48 d)128

• total people who gave hand shakes is =12
  In hand shake we need to hands so the total no of hand shakes =12C2=66
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• n(n-1)/2=(12*11)/2=66
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• 66.because we need 12c2 for handshake
  
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• answer will be 12c2 because the total no of people who are shaking hands is 12.
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• no. of handshakes = 12c2=66
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• Ans is 12c2
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• 12C2=66
  a shake hand is possible between two parties (2) out of 12
  
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• number of handshek nc2
  
  so answer is 12c2==66
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