MathematicsBinary operationsWAEC
A binary operation ⊕ is defined by a ⊕ b = 3a − b. Find 5 ⊕ 7.
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Answer: B. 8
3 × 5 − 7 = 8.
An AdmitMe practice question, written for the WAEC syllabus. Not an official past question.
Mathematics · Binary operations
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