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

Assessment: WAEC SSCE - Agricultural Science - 1998 (Objective) Subject: Agricultural Science

Question 1 Report

If the percentage of nitrogen in ammonium sulphate fertilizer is 20%, calculate the amount of nitrogen in 500 kg of the fertilizer.
Answer Details
If the percentage of nitrogen in ammonium sulphate fertilizer is 20%, then 20% of 500 kg will be: 20/100 x 500 kg = 100 kg Therefore, the amount of nitrogen in 500 kg of the fertilizer is 100 kg. Hence, the correct option is 4. 100 kg.
Read lesson note on Farm Inputs (JAMB)
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