In a party there are 120 handshakes. If all the persons shake hand with every other person. Then find the number of person present in the party?
- 14
- 18
- 16
- 15
- 12
Explanation
If each group comprises of 2 handshakes than total handshakes of all the individuals are 120*2 handshakes = 240
taking Lcm 240 = 16*15 hence 16 persons in total
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