Lesson eLearning

A seed contains protein, fat, and carbohydrates in the ratio 2 : 3 : 5. If the seed weighs 70 g, how many grams of protein does it contain?

medium 2 marks Class 5 · EVS · Seeds and Seeds
Answer
14 g

The correct answer is 14 g — Thus the seed contains 14 g of protein.

Step-by-step solution

  1. Add the ratio parts: 2+3+5 = 10.
  2. Divide the total weight by the number of parts to find the weight of one part: 70 g ÷ 10 = 7 g per part.
  3. Multiply the weight of one part by the number of parts that represent protein (2 parts): 7 g × 2 = 14 g.
  4. Thus the seed contains 14 g of protein.
Common mistake: Using the wrong total (e.g., 70 g) instead of the sum of ratio parts

Concept tested: Ratio of seed nutrients

Published · How this solution was prepared and checked

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