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Numerical Ability
Permutation and Combination
How many numbers are made from 0,1,2,5,6,7,8 but 0 is not at starting position?
a)120
b)600
c)700
d)800
Read Solution (Total 10)
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- 6*7*7*7*7*7*7
with repetition - 10 years agoHelpfull: Yes(26) No(10)
- no. of words with all nos. is 6!
no. of words with 0 in !st position 5!
required no. 6!-5!=600
- 10 years agoHelpfull: Yes(14) No(8)
- for 0 to be placed in a no. 6!
and for other no.'s 6*6! - 10 years agoHelpfull: Yes(10) No(7)
- it will be 6*6!(no repetition)
- 10 years agoHelpfull: Yes(3) No(0)
- i am not getting it :(
- 10 years agoHelpfull: Yes(2) No(0)
- Ans not match 6*7*7*7*7*7*7
- 10 years agoHelpfull: Yes(1) No(0)
- i can't understand this "6*7*7*7*7*7*7 "
- 10 years agoHelpfull: Yes(1) No(0)
- 720 ITS;LKSN
- 10 years agoHelpfull: Yes(0) No(2)
- except one no answer matches the given options..........
- 10 years agoHelpfull: Yes(0) No(0)
- are options correct.... ? @rahul
there is no option either 6*7 power7 or 6*6!
if u know plz comment... - 10 years agoHelpfull: Yes(0) No(0)
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