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PIMSO 2022 - Mathematics - Grade 1 - National Round Question 26

PIMSO Maths · PIMSO 2022 - Mathematics - Grade 1 - National Round

Question 26

How many counting numbers from 1 to 30 are not divisible by 2 or not divisible by 3?

Interpretation note (editorial): OR is read inclusively: at least one of the two stated non-divisibility conditions must hold.