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Maths Puzzle
Rank of the word CHEMISTRY in the dictionary of words formed by using the letters of the word CHEMISTRY
A)5181
B)5169
C)5170
D)5168
E)None of these
Read Solution (Total 3)
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- Rank of the word CHEMISTRY in the dictionary of words formed by using the letters of the word CHEMISTRY = 7! +5! +3! +2! +1 = 5169
- 12 years agoHelpfull: Yes(8) No(6)
- 5169 .. option B
5040 + 120 +6+2+1 = 5169 - 12 years agoHelpfull: Yes(5) No(3)
- arrange chemistry in alphabetical order i.e. cehimrsty
now for c,rank is 0*8!
for h,rank is 1*7!
and so on......
we get 0*8! + 1*7! + 0*6! + 1*5! + 0*4! + 1*3! + 1*2! + 0*1! + 1 = 5169. - 11 years agoHelpfull: Yes(2) No(3)
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