the unit digit in the sum of 124^272+124^272 is

• 124^272(1+1)
  124^272(2)
  
  4^1=4
  4^2=16
  4^3=64
  4^4=256
  .
  .
  .
  .
  .
  therefore,
  4^even=units place 6
  
  124^272=units place 6
  thus 6x2=12
  thus units place 2
• 11 years agoHelpfull: Yes(2) No(0)
• 124^any even number= in unit digit 6
  124^any odd number=in unit digit 4
  So,124^272=unit digit 6
  6+6=12
  Correct answer is 2.
• 11 years agoHelpfull: Yes(2) No(0)
• 124^272(2)
  the cycle of 4 is 4,6
  so if power is even no then unit place is 6
  else unit place is 4
  since 272 is even so unit place is 6
  but we have to multiply 6*2=12
  so unit place is 2
• 11 years agoHelpfull: Yes(1) No(0)