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If each of seven persons in a group shakes hands with each of the other six persons then a total of forty-two handshakes occurs?

The answer is 21 handshakes because the first person shakes hands with the other 6 people. The second person shakes hands with 5 people because they already shook hands with the first person. The third person shakes hands with 4 people because they already shook hands with the first and second person. The fourth person shakes hands with 3 people because they already shook hands with the first, second, and third. The fifth person shakes hands with 2 people because they already shook hands with the first, second, third, and fourth person. The sixth person shakes hands with the seventh person because the rest have already shaken hands with them. The seventh person doesn't have anyone else to shake hands with. Therefore the answer is 21 handshakes.


TJ is hosting a dinner party TJ greets the first guest and they shake hands The second guest arrives and shakes hands with TJ and the first guest The third guest arrives and shakes hands with?

45 Handshakes All Together


How many handshakes will be there be in total if 9 people shake hands with each other?

the first shakes 8 people's hands (remember, not his own), the second 7 (he doesn't shake the first one's hand), then the third shakes six, the fourth shakes 5, the fifth shakes 4, the sixth shakes 3, the seventh shakes 2, and the 8th shakes the 9ths hand so 8+7+6+5+4+3+2+1 = 36


If the friends shake hands mutually then the total number of hand shakes is?

one....


If each OF seven persons in a group shakes hands with each of the other six persons then a total of forty two handshakes occurs?

The total number of handshakes that occur when each of seven persons shakes hands with each of the other six persons can be calculated using the combination formula. The formula for calculating the number of combinations of n items taken r at a time is nCr = n! / (r!(n-r)!). In this case, n = 7 and r = 2 (since each handshake involves 2 people), so the total number of handshakes is 7C2 = 7! / (2!(7-2)!) = 7! / (2!5!) = (7*6) / 2 = 21. Therefore, a total of 21 handshakes would occur in this scenario, not 42.

Related Questions

What do justices of the US Supreme Court do before they take their seats at the bench?

The nine justices shake hands with each of the other nine justices to remind themselves that their differences on the bench should not interfere with the cohesiveness of the Court.


Does our system of justice put too much power in the hands of unelected officials?

Arguably, the justices of the Supreme Court and other courts wield too much power. An interpretation of the law can essentially become a law in itself.


What did the Supreme Court decide in the case and what was president Jackson's response to court ruling?

He took matters into his own hands


What did the Supreme Court decide in the case and what was President Jackson's response the court ruling?

He took matters into his own hands


What did the Supreme Court decide in the case and what was President Jackson response to the court ruling?

He took matters into his own hands


What did the Supreme Court decided in the case and what was President Jackson's response to the court ruling?

He took matters into his own hands


What did the Supreme Court decide in the case and what was presidents Jackson's response to the court ruling?

He took matters into his own hands


What did the supreme court decide in the case and was president jacksons response to the court ruling?

He took matters into his own hands


Why do the justices shake hands with one another before sitting on the bench?

The traditional "conference handshake" began under Chief Justice Melville Fuller in the late 19th century. When the justices assemble as a group to hear or discuss cases, each justice shakes hands with each of the other eight. This is supposed to serve as a reminder that differences of opinions are not personal attacks, and that the justices are united for a single purpose.


When the supreme courts hands down a decision in a case that upholds a previous ruling the justices are said to be following which principle?

Stare Decisis


Five people shake hands with every one how many shakes were there?

25 shakes


If each of seven persons in a group shakes hands with each of the other six persons then a total of forty-two handshakes occurs?

The answer is 21 handshakes because the first person shakes hands with the other 6 people. The second person shakes hands with 5 people because they already shook hands with the first person. The third person shakes hands with 4 people because they already shook hands with the first and second person. The fourth person shakes hands with 3 people because they already shook hands with the first, second, and third. The fifth person shakes hands with 2 people because they already shook hands with the first, second, third, and fourth person. The sixth person shakes hands with the seventh person because the rest have already shaken hands with them. The seventh person doesn't have anyone else to shake hands with. Therefore the answer is 21 handshakes.