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IMAS 2017 — Upper Primary Grades 5–6 — Round 1 Question 23

IMAS · IMAS 2017 — Upper Primary Grades 5–6 — Round 1

Question 23

The sum of all the digits of a 3-digit number is divided by 4. Now, the sum of all digits of the number which is equal to the previous 3-digit number plus 1 is also divided by 4. What is the largest possible such number?