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IKMC 2009 — Grades 3–4 Question 19

IKMC · IKMC 2009 — Grades 3–4

Question 19

A secret agent wants to crack a six digit code. He knows that the sum of the digits in the even positions is equal to the sum of the digits in the odd positions. One of the following numbers is the code. Which one is that?
  1. $81**61$
  2. $7*727*$
  3. $4*4141$
  4. $12*9*8$
  5. $181*2*$