how many positive integers less than 4300 of digits 0-4.

• Ans is 575
  one digit no =4 (0 is not a positive integer)
  two digit no=4*5=20
  three digit no=4*5*5=100
  four digit no=3*5*5*5=375(the possibility for 1,2,3 will come in the first position)
  four digit no=1*3*5*5(the possibility of 4is fixed in the first position and then 0,1,2 is comes in second position)
  and the last digit is 4300 we include this number also
  
  Ans is 4+20+100+375+75+1=575
• 8 years agoHelpfull: Yes(24) No(7)
• Can somebody explain the question clearly and why did you multiply with 5
• 8 years agoHelpfull: Yes(18) No(0)
• ans is 574
  one digit no. 4( we can't include 0 because question is for positive integers only so 1,2,3,4 - total 4 numbers)
  two digit no. 4*5=20
  three digit no. 4*5*5=100
  four digit no. 3*5*5*5=375 (upto 3999)
  four digit no. 1*3*5*5=75 (from 4000 to 4299)
  
  Answer is 4+20+100+375+75= 574
  
• 8 years agoHelpfull: Yes(17) No(1)
• ans is 575
  one digit no. 5
  two digit no. 4*5=20
  three digit no. 4*5*5=100
  four digit no. 3*5*5*5=375 (upto 3999)
  four digit no. 1*3*5*5=75 (from 4000 to 4299)
  
  Answer is 5+20+100+375+75= 575
  
• 8 years agoHelpfull: Yes(11) No(6)
• is 575
  one digit no =4 (0 is not a positive integer)
  two digit no=4*5=20
  three digit no=4*5*5=100
  four digit no=3*5*5*5=375(the possibility for 1,2,3 will come in the first position)
  four digit no=1*3*5*5(the possibility of 4is fixed in the first position and then 0,1,2 is comes in second position)
  and the last digit is 4300 we include this number also
  
  Ans is 4+20+100+375+75+1=575
  
• 8 years agoHelpfull: Yes(5) No(0)
• The question itself is not clear
• 8 years agoHelpfull: Yes(3) No(2)
• ans 426
  one digit no.-5
  two digit no-- 4*5=20
  three digit no- 4*5*5=100
  4 digit no.=4*3*5*5=300
  +1 i.e 4300
• 8 years agoHelpfull: Yes(2) No(4)
• we have to check how many positive integers are formed by {0,1,2,3,4} less than 4300 :
  
  this are the digit 4 digit places : - - - -
  in 4300 thr are ones ,tens ,hundreds,thousands,
  1) so 1 digit numb take priority of single space so from {0,1,2,3,4} in this 0 is neglected as numbers will
  not starts from zero so thr is possibility of 4 numbers in 1st digit i.e {1,2,3,4}
  
  similarly
  2)two digit no=4*5=20 {in this starting number will not start with zero but second digit number will be {0,1,2,3,4} so thr is 5 possibility
  
  three digit no=4*5*5=100
  
  four digit no=3*5*5*5=375(the possibility for 1,2,3 will come in the first position)
  
  for given 4300
  four digit no=1*3*5*5(the possibility of 4is fixed in the first position and then 0,1,2 is comes in second position)
  
  and last digit 4300 is also added i.e=1
  Ans is 4+20+100+375+75+1=575
• 4 years agoHelpfull: Yes(2) No(0)
• ans is 425
  one digit no. 4
  two digit no. 4*5= 20
  Three digit no. 4*5*5= 100
  four digit no. 4*3*5*5= 300 (upto 4299)
  Four digit no. 4300 = 1
  
  Answer is 4+20+100+300+1 = 425
• 8 years agoHelpfull: Yes(1) No(5)
• One easy method is to notice that there is a one-to-one correspondence between the numbers less than 4300 that can be made from the digits 0–4 and all the numbers less than 43005 in their base-5 representation. The answer is therefore 43005=4×53+3×52=575.
• 8 years agoHelpfull: Yes(1) No(2)
• 4+20+100+375+75=574
• 8 years agoHelpfull: Yes(1) No(1)
• ans is D(4)
• 8 years agoHelpfull: Yes(0) No(1)
• 4+20+100+375+75+1=575
• 8 years agoHelpfull: Yes(0) No(1)
• An=4300,a=1000,d=1,n=?.4300=1000+(n-1)d=3301
• 4 years agoHelpfull: Yes(0) No(1)