rem when121212121... upto 300digits divided by 99

• 121212121... upto 300digits / 99
  
  12/99 => rem = 12
  
  1212/99 => rem = 24 = 2*12
  
  121212/99 => rem = 36 = 3*36
  
  same way
  121212121... upto 300digits / 99
  
  121212121... upto 150 times 12 / 99 => rem = 150*12/ 99 => rem = 18
• 9 years agoHelpfull: Yes(8) No(4)
• 12 is repeated for 300/2=150 times.
  12*150/99 leaves remainder=18
  so ans=18
  
• 9 years agoHelpfull: Yes(5) No(3)
• For 99 we've to make pair of 2digits and then sum up them
  Here,(300/2)=150 pairs of 12s.
  So,12*150=1800
  hence, remainder is 18.
• 9 years agoHelpfull: Yes(1) No(1)
• ans is 54.soln 450/99=54
  
• 9 years agoHelpfull: Yes(0) No(0)
• 12+12+......150times = 1800/99= rem 9
• 9 years agoHelpfull: Yes(0) No(0)