Latest Elitmus Aptitude Question SOLUTION: There are five couples at a party.namely A&B,C&D,E&F,G&H,I&J.The couples shake their hands with the one they are acquainted with. I)Find the total number of handshakes? II) Find t

• Placement Papers
• /
• Elitmus
• /
• Logical Reasoning
• /
• Logical Sequences

Elitmus Question Papers:

(#M40156199) ELITMUS Logical Reasoning question Logical Keep an EYE

There are five couples at a party.namely A&B,C&D,E&F,G&H,I&J.The couples shake their hands with the one they are acquainted with.

I)Find the total number of handshakes?
II) Find the member whom with the A does not shake the hands?(other than B)

*sry i don't remember the options

Asked In Elitmus Elakkiya Balasubramanian (8 years ago)

Unsolved Read Solution (7)

Is this Puzzle helpful?   (7)   (1) Submit Your Solution Logical Sequences

Read Solution (7) :

amit maurya  (7 years ago)

There are totally 40 handshakes....

First couple handshake with other is 8+8 = 16
Second couple handshake with other except first couple..becuase we already add their handshakes. so ie 6+6 = 12
Third couple handshakes is 4+4 = 8 (minus the first two couples handshake)
Fourth couple handshakes is 2+2 = 4 (minus the first three couples handshake)
Last couple handshakes is 0+0 = 0 (minus the first four couples handshake)

so total 16+12+8+4 = 40.

Is this solution Helpfull? Yes (9) | No   

anish  (7 years ago)

total handshakes= (2n^C2) - n ( usually formula is nC2. here couples are given so 2nC2 - n. -n is because they will not shake hand with spouse). answer is 40.
or you can do it with another method:
0 1 2 3 4
a c e g i
b d f h j
8 7 6 5 4
add all numbers total will be 40. just write name of couples in pairs and start with zero. in second line start with same number in backward direction.

Is this solution Helpfull? Yes (7) | No (1)  

arthi  (8 years ago)

total handshakes =8

Is this solution Helpfull? Yes (3) | No (11)  

saicharan  (7 years ago)

i) i think ans is :90

bcoz there are 10 persons

so 1 person gives shake hands to 9 persons.
lly 10 persons gives 10*9=90

i i) Find the member whom with the A does not shake the hands?(other than B)

it means A only.................becoz A can't give shake hand to A.

Is this solution Helpfull? Yes (1) | No   

Md. Irshad Alam  (7 years ago)

total handshake=40

Is this solution Helpfull? Yes (1) | No   

Sri Satya Kanakala  (7 years ago)

Can anyone answer to the question
II) Find the member whom with the A does not shake the hands?(other than B)
Please ...

Is this solution Helpfull? Yes | No   

Manisha Choudhary  (7 years ago)

Total handshakes = 40
1st pair A and B do handshake with C&D ,E&F and so on..
SO,
8+8=16
2nd pair C&D do handshake with other couple except with first couple ( because we already add their handshakes)
SO,
6+6=12
3rd couple = 4+4 = 8
4th couple = 2+2 = 4
last couple 0 handshake.
final = 16+12+8+4=40

Is this solution Helpfull? Yes | No   

Please Login to Read Solution.