JAMB Mathematics 2002 Question 1

Question 1

Indices

Without using tables, evaluate (343)1/3 × (0.14)−1 × (25)−1/2

  1. A.10
  2. B.12
  3. C.8
  4. D.7
Show the answer and explanation

Answer: A (10)

Explanation

(343)1/3 = 7, (0.14)−1 = 100/14 and (25)−1/2 = 1/5. So 7 × 100/14 × 1/5 = 50/5 = 10.