Latest TCS Aptitude Question SOLUTION: In how many different ways can 5 girls and 5 boys form a circle such that the boys and the girls alternate? Options 1) 2880 2) 1400 3) 1200 4) 3212

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(#M40118009) TCS Numerical Ability question Probability Keep an EYE

In how many different ways can 5 girls and 5 boys form a circle such that the boys and the girls alternate?

Options
1) 2880
2) 1400
3) 1200
4) 3212

Asked In TCS Divya jain (9 years ago)

Unsolved Read Solution (6)

Is this Puzzle helpful?   (16)   (8) Submit Your Solution Permutation and Combination

Read Solution (6) :

arun gupta  (9 years ago)

the answer is 2880
explanation : since in circular permutation no. of ways person can be arrange is (n-1) !
now suppose the girls are seated in !4 ways now there are 5 spaces created (try to visualise ) now these can be filled in !5 ways so the ans is !4*!5=2880

Is this solution Helpfull? Yes (6) | No   

Arunima   (8 years ago)

5!*5!*2=2880

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

CROSSWIN  (9 years ago)

possible orders of boys and girls:
5*4*3*2*1=120 ways for boys
5*4*3*2*1=120 ways for girls

120*120=14400(B G B G B G..)
120*120=14400(G B G B G B..) like that

The total possible arrangements is:
14400+14400=28800

Is this solution Helpfull? Yes (1) | No (2)  

Sakshi Agarwal  (8 years ago)

4!*5!=2880

Is this solution Helpfull? Yes | No   

Shikha jain  (8 years ago)

4!*5!=2880

Is this solution Helpfull? Yes | No   

prabhat ranjan mishra  (8 years ago)

28880 is right ans

Is this solution Helpfull? Yes | No (1)  

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