121212....upto 300 times divided by 90 reminder is

• 12/90=12
  1212/90=42
  121212/90=72
  12121212/90=12
  1212121212/90=42
  
  cycle of 12,42,72 repeats after 2,4,6 digits
  so
  (1212... 6 digits)/90=(1212... 12digits)/90=...=(121212...300 digits)/90= rem 72
  
  ANS 72
• 10 years agoHelpfull: Yes(3) No(0)
• sum of digits of 121212....upto 300 digits=(1+2)*150=450
  so 121212....upto 300 digits is divisible by 9
  now 121212....upto 300 digits/9=13468013468..........13468
  thus 13468013468..........13468/10 gives remainder 8
  121212....upto 300 digits/(9*10) will give remainder 8*9=72
  
  ANS 72
  
• 10 years agoHelpfull: Yes(1) No(0)