Which Indian cricketer is known as "Brown Bradman"?

Is doing CCNA certification is good for future?

18th century French adventuress Marie du Barry was mistress to Louis XV from 1769 until banished to the country.........

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Brian Lara is associated with which sport?

The Super Bowl, the championship game of the National Football League, was first played as part of a merger.............

All attendees to a party are introduced to one another. 21 handshakes are made in total. How many people are attending the party?

7

Formula n*(n-1)/2 = 21

Answer : 7

In a party there are 123 persons present. If each of them shakes hand with all the other persons, in total how many handshakes will takes place?

In a party there are 24 persons present. If each of them shakes hand with all the other persons, in total how many handshakes will takes place?

If seven people meet each other and each shakes hands only once with each of the others, how many handshakes will there have been?

Initially, 60% of all attendees in a school party were girls. A while later, with 8 girls and 12 boys gone, the number of girls became twice as many as the number of boys. How many people were present initially?