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
Question:
A20
B45
C55
D90
Answer:
No of shakehands = n(n-1)/2 = (10x9)/2 =45
Related Questions:
The following pie chart shows the distribution of expenses (in degrees) of a family during 2016.
Total income of the family in 2016 = Rs. 1080000
How much they spend (in Rs.) on clothes?