Latest TCS Aptitude Question SOLUTION: Find the rank of the word GOOGLE if all the words which can be formed by permuting letters of this word without repitition are arranged in dictionary in alphabetical order??? ans-8

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(#M40153961) TCS Numerical Ability question PERMUTATION AND COMBINATION Keep an EYE

Find the rank of the word GOOGLE if all the words which can be formed by permuting letters of this word without repitition are arranged in dictionary in alphabetical order???
ans-88

Asked In TCS TAUSEEF AMEEN (8 years ago)

Solved Naveen Chaudhary Read Solution (6)

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Naveen Chaudhary  (8 years ago) Best Solution

GOOGLE
EGGLOO arranging in alphabetiaccal order
E - - - - - 5!/(2!*2!)=30
GE- - - - 4!/2!=12 30+12=42
GG- - - - 4!/2!=12 42+12=54
GL- - - - 4!/2!=12 54+12=66
GOE - - - 3!=6 66+6=72
GOG- - - 3!=6 72+6=78
GOL- - - 3!=6 78+6=84
GOOE- - 2!=2 84+2=86
GOOGE - 1!=1 86+1=87
GOOGLE 1!=1 87+1=88

So, 88 th no, is GOOGLE

Is this solution Helpfull? Yes (27) | No   

lalitha nagarajan  (8 years ago)

https://www.youtube.com/watch?v=n0N3lO3ZI8A

Is this solution Helpfull? Yes (8) | No (1)  

Sayandeep Jana  (8 years ago)

5 4 3 2 1 0
G O O G L E
now we have to consider the word in alphabetic order,first we are starting from '5'th position that is G,then Find how much letter are there in the right side of G. there is only one letter E and we have seen there are '2' G.So,it will be=1*5!/2!=60
now considering for O on the same way.the letter of the right side before here we get G,L,E.so it will be=3*4!/2!=36
after that we don't consider the O,G because it will be repeated.
now we consider L,here right side letter is E.so it will be=1*1!=1
for the last digit it will be always 1.
so the position is 60+36+1+1=88.
remember: Arrangement is done by using alphabet .Nothing else..

Is this solution Helpfull? Yes (3) | No (7)  

Vineet Sharma  (8 years ago)

https://www.youtube.com/watch?v=i3pQZ9I9NJ4

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Abhijit Das  (8 years ago)

ans- 441
youtube search

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

lalit  (7 years ago)

30+36+18+2+1+0+1 = 88

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