Question

A conference is attended by 25 participants. If each participant shakes hand with every other participant, what will be the resultant number of handshakes?

Answer 1

Answer:

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Answer 2

Given:

Total number of people = 25

To find:

If each participant shakes hand with every other participant, what will be the resultant number of handshakes?

Solution:

We know that the formula to calculate the number of handshakes if there are n people is:

= $\frac{n*(n-1)}{2}$

Here, the value of n is 25, thus on substituting the value in the given formula we get:

$=\frac{25*24}{2} \\=300$

Thus, If each participant shakes hand with every other participant, the resultant number of handshakes will be 300 in number.