Seven People handshakes-Math riddle

Answer: 21

Explanation :  

Certainly, let's provide a mathematical explanation for the number of handshakes:

To calculate the total number of handshakes that occur when seven people shake hands as described in the riddle, we can use a summation.

We start with the first person, who shakes hands with six other people. This can be represented as:

1st person shakes hands with 6 people = 6 handshakes

Then, the second person shakes hands with the remaining six people (excluding the first person), so:

2nd person shakes hands with 5 people = 5 handshakes

The third person shakes hands with 4 people:

3rd person shakes hands with 4 people = 4 handshakes

This pattern continues until the last person, who shakes hands with only one person:

7th person shakes hands with 1 person = 1 handshake

Now, to find the total number of handshakes, we simply sum up these individual handshakes:

Total handshakes = 6 + 5 + 4 + 3 + 2 + 1

Total handshakes = 21

Therefore, there are indeed 21 handshakes in total when the seven people follow the described handshake pattern.