Question:
At the end of a conference, the ten people present all shakehands with each other once. How many shakehands will there be altogether
A20
B45
C55
D90
Answer:
B. 45
Explanation:
No of shakehands = n(n-1)/2 = (10x9)/2 =45
Related Questions:
Question:
A20
B45
C55
D90
Answer:
No of shakehands = n(n-1)/2 = (10x9)/2 =45
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