# Seven members are there in a meeting. Each should handshake only once with all others. Find the total number of handshakes?

#### saritha

• May 27th, 2005

#### Danny John

• Jan 27th, 2006

7 members shake hands that is a shake involves 2 therefore 7C2 combination so 21

#### bhavani

• Jun 16th, 2007

42 shake hands..b'cozĀ  each person shake hand with only 6 persons.

so 7 persons X 6hands = 42 shake hands..

#### palak

• Jul 4th, 2007

42 shake hands..b'cozĀ  each person shake hand with only 6 persons.

so 7 persons X 6 hands = 42 shake hands..

#### sasirekha

• Jul 28th, 2007

since each person should handshake for  one time. The first person handshakes with 6 persons and 2nd person with 5 persons and 3rd with 4 persons and 4th guy with 3 persons and 5th one with 2 persons . sixth persons need not to handshake as others given and the total is 6+5+4+3+2+1=21.

#### vbseek Profile Answers by vbseek

• Feb 9th, 2008

#### hrishiprasoon Profile Answers by hrishiprasoon

• May 18th, 2008

anser will be 21

#### Thamilarasu

• Aug 30th, 2015

n*(n-1)/2
ans=21 handshakes