TCS
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Numerical Ability
Permutation and Combination
Find the 55th word of dictionary SHUVANK?
Read Solution (Total 8)
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- AHSNKUV ----> 55th word
A _ _ _ _ _ _ 6 places to fill {6! --> 6*5*4*3*2*1=720 ways}
AH_ _ _ _ _ 5 places to fill {5!---> 5*4*3*2*1=120 ways}
AHK_ _ _ _ 4 places to fill {4!---->4*3*2*1=24 ways}
AHN_ _ _ _ 4 places to fill 24 ways
So 24+24=48 still 7 more way to go.
AHSK_ _ _ 3! 6 ways.
AHSN_ _ _ only 1 way to be the 55th word
AHSNKUV - 10 years agoHelpfull: Yes(17) No(6)
- A H K --------------- 24 WAYS
A H N ----------------24 WAYS
A H S K --------------6 WAYS
ANSWER--> A H S N K U V - 10 years agoHelpfull: Yes(3) No(0)
- A _ _ _ _ _ _ 6 places to fill {6! --> 6*5*4*3*2*1=720 ways} 55 5*4*3*2*1=120 ways} 554*3*2*1=24 ways} 55>24 thats means third latter is not K.
So we check next letter N.
And Rank is (55-24=31th).
AHN_ _ _ _ 4 places to fill {4!---->4*3*2*1=24 ways} . 31>24 thats means third latter is not N.
So we check next letter S.
And Rank is(31-24=7th).
AHS_ _ _ _ 4 places to fill {4!---->4*3*2*1=24 ways} . 76. thats means fourth latter is not K.
So we check next letter N.
And Rank is(7-6=1).
55th rank
=======AHSNKUV===== - 10 years agoHelpfull: Yes(3) No(0)
- 55=AHSKVUN
- 10 years agoHelpfull: Yes(0) No(1)
- answer is ANKHSUV
- 10 years agoHelpfull: Yes(0) No(2)
- sorry it AHSNKUV
- 10 years agoHelpfull: Yes(0) No(0)
- answer is KAHSNUV
1.write the word in alphabetical order-AHKNSUV.
2.keeping frst 3 words constant we can arrange the left out 4 letters in 4! ways.so we can get 24th word-AHKVUSN.
3.AHK is constant.now wright frst word from right hand side.ull get 24th word.series of words forming by A will end here.
4.next word in the dictionary will start frm H.So 25 th word-HAKNSUV.series starts wiyh H.
5.Again last 4 words will be arranged and we get 48th word.(24+24).process will be same as we took out the 24th we will take out 48th word.i.e HAKVUSN
6.49TH Word-KAHNSUV(SAME AS WE TOOK OUT 25TH)
7.BY Arranging last 4 words we can get 55th wrod-KAHSNUV
5.now, - 10 years agoHelpfull: Yes(0) No(6)
- sry correct ans is AHKNSUV
- 10 years agoHelpfull: Yes(0) No(2)
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