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Verbal Ability
Spotting Errors
The letters in the word FRONDS are permuted in all possible ways and arranged in the alphabetical order. Find the word at position 47 in the permuted alphabetical order
A. DOFNSR
B. DNSROF
C. DOFNRS
D. DNSRFO
Read Solution (Total 5)
-
- the first word= 'DFNORS'
so by keeping 'DF' cons. arrange other letters i.e NORS so no of ways =4!=24
now keep 'DN' cons arrange other letters i.e 'FORS' so no of ways =4!=24
and the total no of ways =24+24=48
the 48 position word will be 'DNSROF'
as it is alphabetical order
so the 47 position word will be 'DNSRFO'
ans-D - 11 years agoHelpfull: Yes(38) No(3)
- 1st word is DFNORS
DF****=4!=24 ways
DN****=4!=24 ways
then 48th word is DNSROF
hence 47th word id DNSRFO
so answer D is correct.. - 11 years agoHelpfull: Yes(5) No(1)
- Df****=24 ways
Do****=24 ways
then total no of way this is 48 no is DNSRFO then the 47 no is DNSROF
- 11 years agoHelpfull: Yes(2) No(7)
- in FRONDS, total letters are=6, at 2nd place the letter is R, originally after R comes S, here S is at 6th position i.e. 3 places from R. By hit and trial method only option D satisfies this condition.
ans-D - 11 years agoHelpfull: Yes(1) No(1)
- c,,DOFNRS
DF....=16 WAYS
DN....=16 WAYS
D0....=16 WAYS
DOFNRS=47TH and DOFNSR=48TH
- 11 years agoHelpfull: Yes(0) No(4)
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