WAEC Mathematics 2010 Question 7

Question 7

Fractions, Decimals and Approximation

Correct 0.002473 to 3 significant figures.

  1. A.0.002
  2. B.0.0024
  3. C.0.00247
  4. D.0.0025
Show the answer and explanation

Answer: C (0.00247)

Explanation

The significant figures start at 2: 2, 4, 7, and the next digit 3 rounds down, giving 0.00247.