Teaching BPSC बिहार प्राथमिक (1 to 5) शिक्षक भर्ती 4.0 Mock Test Quantitative Aptitude Permutation and Combination
In a basketball match, all ten players shake hands with each other once after the match. How many handshakes will be there?
1
20
2
45
3
55
4
90
5
None of the above/More than one of the above