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What is the maximum no. of 4 digit numbers formed from the digits 0,1,2,3 without the repetitions of numbers in the digits?
Read Solution (Total 5)
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- 18 combinations. 3(u cant include zero)*3*2*1=18 numbers
- 12 years agoHelpfull: Yes(7) No(4)
- 18 combinations. 3*3*2*1=18 numbers
- 10 years agoHelpfull: Yes(2) No(0)
- ansr will be 6....as 3 is fixed and remaining change 3___ three position3!3*2*1=6
- 10 years agoHelpfull: Yes(1) No(0)
- Ans is 18
(u cant include zero)
_ _ _ 1 =>3!= 3*2*1=6
_ _ _ 2 =>3!= 3*2*1=6
_ _ _ 3 =>3!= 3*2*1=6
Total =6+6+6=18 combinations.
- 10 years agoHelpfull: Yes(1) No(0)
- permutation of 4 no is 24....but 0 is occurrence 8 time in first position (ex 0123) so sub from total 24-8=16
- 9 years agoHelpfull: Yes(0) No(2)
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