WAEC Agricultural Science 2020 Question 18

Question 18

Soil Fertility and Plant Nutrition

Determine the ratio of nutrients in NPK 5-10-15.

  1. A.1:2:2
  2. B.1:2:3
  3. C.1 :3:1
  4. D.2:1:3
Show the answer and explanation

Answer: B (1:2:3)

Explanation

Divide each by 5: 5:10:15 = 1:2:3.