JAMB Mathematics 1991 Question 8

Question 8

Indices

What is the product of 27/5, (3)−3 and (1/5)−1?

  1. A.5
  2. B.3
  3. C.1
  4. D.1/25
Show the answer and explanation

Answer: C (1)

Explanation

(3)−3 = 1/27 and (1/5)−1 = 5, so 27/5 × 1/27 × 5 = 1.