WAEC Mathematics 1998 Question 7

Question 7

Indices

Simplify: (82/3 × 27−1/3)/641/3

  1. A.−3
  2. B.1/9
  3. C.1/3
  4. D.27/8
  5. E.4.
Show the answer and explanation

Answer: C (1/3)

Explanation

82/3 = 4, 27−1/3 = 1/3 and 641/3 = 4, so the value is 4 × 1/3 ÷ 4 = 1/3.