Latest Accenture Aptitude Question SOLUTION: Q. In a party attended by 11 persons, each clinch their glass with every other. How many glass clinches?

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Q. In a party attended by 11 persons, each clinch their glass with every other. How many glass clinches?

Asked In Accenture (10 years ago)

Solved Akanksha Mishra Read Solution (12)

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Read Solution (12) :

Akanksha Mishra  (10 years ago)

Total no. of person = 11
Total no. of glass clinches = n(n-1)/2
=11*10/2
= 55
so ans will 55

Is this solution Helpfull? Yes (15) | No (1)  

Biswajit Malakar  (9 years ago)

1 persons clinch his glass with 10 person
1 persons clinch his glass with 9 person
and so on
now
10(10+1)/2
=55

Is this solution Helpfull? Yes (4) | No   

Shah Het  (9 years ago)

First person clinches with 10 others
Then, second will clinch with 9 because he has already clinched with first one.
then, in this manner 3rd one will clinch with 8 persons
In this way
total clinches are 10+9+8+...+1
So it makes a arithmetic progression and some of total clinches are given by the formula n(n-1)/2
So its
11(11-1)/2=11*10/2
=110/2
=55 clinches

Is this solution Helpfull? Yes (3) | No   

Pooja  (9 years ago)

11 persons are there. 2 glasses will get clinched.
This can be represented in the form of 11C2

11C2 = 11!/(2! * (11-2)!)
= 11!/(2! * 9!)
= 55.... Answer.

Is this solution Helpfull? Yes (2) | No   

Snehashish Pal  (10 years ago)

n(n-1)/2
11*10/2=55
ans is 55

Is this solution Helpfull? Yes (1) | No (3)  

Nitesh Kishore Kashi  (10 years ago)

How is Total no. of glass clinches = n(n-1)/2

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

pooja ramesh  (9 years ago)

why is n(n-1)/2 is used ... can someone explain pls

Is this solution Helpfull? Yes (1) | No (5)  

vikash kumar  (10 years ago)

11
C =(11*10)/2->55
2

Is this solution Helpfull? Yes | No (1)  

santhu  (9 years ago)

11c2=55
11!/9!*2!=55

Is this solution Helpfull? Yes | No (1)  

raaz yadav  (9 years ago)

total no of persons = 11
total no of clinches= [n(n-1)]/2
=[11(11-1)]/2
=110/2
= 55
so no of total clinches =55

Is this solution Helpfull? Yes | No (1)  

ashutosh kumar  (7 years ago)

11*10=110 every one clinches glass with other except himself

Is this solution Helpfull? Yes | No   

priyanka biswal  (5 years ago)

n*(n-1)/2
11*(11-1)/2
55

Is this solution Helpfull? Yes | No   

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