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UI Post-UTME Mathematics 2012 Question 20

Question 20

Fractions, Decimals and Approximation

Approximate 0.00629946 to 3 significant figures.

  1. A.630
  2. B.0.006
  3. C.0.00
  4. D.0.00630
Show the answer and explanation

Answer: D (0.00630)

Explanation

The first three significant figures are 6, 2, 9; rounding gives 0.00630.