GCE Mathematics 1990 Question 1

Question 1

Indices

Simplify: 125−1/3 × 49−1/2 × 100

  1. A.350
  2. B.35
  3. C.1/35
  4. D.1/350
  5. E.0
Show the answer and explanation

Answer: C (1/35)

Explanation

125−1/3 = 1/5, 49−1/2 = 1/7 and 100 = 1, so the product is 1/35.