How many vehicle registration plate numbers can be formed with digits 1,2,3,4,5 (no digit being repeated), if it is given that registration number can have 1 to 5 digits?
1)780 2)625 3)580 4)325

• 4)325
  5+5*4+5*4*3+5*4*3*2+5*4*3*2*1=325
• 3 years agoHelpfull: Yes(2) No(0)
• = (5*4*3*2*1)+(5*4*3*2)+(5*4*3)+(5*4)+(5)
  = 120 + 120 + 60 + 20 + 5
  = 325 Ans.
• 3 years agoHelpfull: Yes(2) No(0)
• 1.If the number is of 1 digit= 5 ways. = 5
  2.If the number is 2 digit no then, =5*4= 20
  3.If its 3 digit number then, =5*4*3. = 60
  4.If its 4 digit number,=5*4*3*2. =120
  5.If its 5 digit number, =5*4*3*2*1. =120
  total number of ways= sum of all 5 cases=350.
• 3 years agoHelpfull: Yes(1) No(3)