Maximum number that can be formed using 4 digits

• 9*10*10*10 when repetation is allowed
• 10 years agoHelpfull: Yes(33) No(3)
• ans:9999
  they didn't mention the 4 digits as(*,+,-,%)
  when repetation is allowed
• 10 years agoHelpfull: Yes(9) No(0)
• 9*9*8*7 by pnc when repetition is not allowed
• 10 years agoHelpfull: Yes(4) No(9)
• minimum 4 digit number is 1000
  maximum 4 digit number is 9999
  
  so total 4 digit number formed by all the digits from 0 to 9 is (9999-1000)+1=9000
• 10 years agoHelpfull: Yes(3) No(3)
• 24=4! number 4*3*2*1
• 10 years agoHelpfull: Yes(2) No(5)
• 9*10*10*10
• 10 years agoHelpfull: Yes(2) No(0)
• 9999 is the 4 digit maximum number
  
• 10 years agoHelpfull: Yes(2) No(0)
• according to question we have to form numbers....i.e.
  what i am getting is...
  case 1:-
  (A)how many numbers we can from using 4 digits..
  sol-:-
  With repetition...
  9*10*10*10=9000 because we can not put zero @ 1st place from left.
  Without repetition...
  9*9*8*7=4536 because we can not put zero @ 1st place from left so we have 9 digits to put here again for 2nd place we will be having 9 digits excluding that last one which we have placed on 1st place from left.
  MAXIMUM NUMBER & MINIMUM NUMBER :-
  Maximum number :-
  With Repetition of digits will be :-9999
  With Out Repetition of digits will be :-9876
  Minimum Number :-
  With Repetition of digits will be :-1000
  With Out Repetition of digits will be :-1234
  
• 9 years agoHelpfull: Yes(2) No(0)
• ans: maximum four digit no is 9999 but we do not include repeatition of digits so ans is 9876
• 10 years agoHelpfull: Yes(1) No(2)
• 9*10*10*10,as there are total 10 digit(0,1,2,....9),but in fisrt position u cant take 0,so it become 3 digit..
• 10 years agoHelpfull: Yes(1) No(1)
• Each individual has their own view, how I know which ans is correct,
  Confusion.....
• 10 years agoHelpfull: Yes(1) No(0)
• 6*8*9*10 when repetition is not allowed
• 10 years agoHelpfull: Yes(0) No(5)
• it can also be 9^9^9^9
• 10 years agoHelpfull: Yes(0) No(2)
• ans = 18000
  if repetation allowed
  9*10*10*10=9000
  9000*2=18000(when negative sign taken)
• 10 years agoHelpfull: Yes(0) No(1)
• 9000 as 9*10*10*10
• 10 years agoHelpfull: Yes(0) No(1)
• MAX OF 4 DIGIT 9999
  MIN :1000
• 10 years agoHelpfull: Yes(0) No(1)