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GCE Mathematics 1989 Question 10

Question 10

Fractions, Decimals and Approximation

Evaluate 0.009 ÷ 0.012, leaving your answer in standard form.

  1. A.7.5 × 102
  2. B.7.5 × 101
  3. C.7.5 × 10−1
  4. D.7.5 × 10−2
  5. E.7.5 × 10−3
Show the answer and explanation

Answer: C (7.5 × 10−1)

Explanation

0.009 ÷ 0.012 = 9 ÷ 12 = 0.75 = 7.5 × 10−1.