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JAMB Mathematics 1999 Question 9

Question 9

Fractions, Decimals and Approximation

Simplify √((0.0023 × 750)/(0.00345 × 1.25))

  1. A.15
  2. B.20
  3. C.40
  4. D.75
Show the answer and explanation

Answer: B (20)

Explanation

0.0023 × 750 = 1.725 and 0.00345 × 1.25 = 0.0043125. Their quotient is 400, and √400 = 20.