MathematicsNumber basesWAEC
Add 213₄ and 132₄, giving the answer in base four.
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Answer: D. 1011₄
213₄ = 39 and 132₄ = 30; 39 + 30 = 69 = 64 + 4 + 1 = 1011₄. 345₄ comes from adding columns without carrying.
An AdmitMe practice question, written for the WAEC syllabus. Not an official past question.