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WAEC Agricultural Science 1998 Question 13

Question 13

Soil Fertility and Plant Nutrition

If the percentage of nitrogen in ammonium sulphate fertilizer is 20%, calculate the amount of nitrogen in 500 kg of the fertilizer

  1. A.20 kg
  2. B.40 kg
  3. C.50 kg
  4. D.100 kg
  5. E.250 kg.
Show the answer and explanation

Answer: D (100 kg)

Explanation

20% of 500 kg = 100 kg.