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AIMO 2021 Primary 3 — Preliminary (Open Trial 1) Question 20

AIMO · AIMO 2021 Primary 3 — Preliminary (Open Trial 1)

Question 20

Two similar books and three identical pencil boxes cost \$42. Two similar books and six identical pencil boxes cost \$60. How much does each pencil box cost?

Answer : ……………………………