If 10 person shake their hands with each other , then total number of handshakes are --
If 10 person shake their hands with each other , then total number of handshakes are -- Correct Answer 45
১ম ব্যক্তি অবশিষ্ট 9 জনের সাথে handshake করে ২য় ,, ,, 8 ,, ,, ,, ,, ৩য় ,, ,, 7 ,, ,, ,, ,, ⸫ Total Handshake = n(n - 1)2 = 10(10 - 1)2 = 45