WAEC Mathematics 2014 Theory — Question 1

Question 1 of 23 from the West African Examinations Council (WAEC) Mathematics 2014 Theory paper, with the correct answer and a full explanation.

PART I 1(a). Without using tables or calculator, simplify: (0.6×32×0.004)/(1.2×0.008×0.16), leaving the answer in standard form (scientific notation).

Model answer

Numerator = 0.6×32×0.004 = 0.0768 Denominator = 1.2×0.008×0.16 = 0.001536 Result = 0.0768/0.001536 = 50 In standard form: 5×10¹

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