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AMO · 2027 · Grades 4-5 · Self-study SET 32 Question 2

AMO

Question 2

If $A+B=28$, $B+C=40$ and $A+C=36$, what is $5\times A+5\times B+5\times C$?

Choose one option.
  1. 280
  2. 360
  3. 500
  4. 480
  5. 260