Lesson eLearning

A goat farm has 15 goats. If 3 goats fall sick each month and are replaced by 2 goats, after 6 months, how many goats are there? Explain the steps.

hard 3 marks Class 4 · EVS · Basva Farm
Answer
9 goats

The correct answer is 9 goats — Final number = 15 – 6 = 9 goats.

Step-by-step solution

  1. Start with 15 goats.
  2. Each month net change = 2 goats (replaced) – 3 goats (sick) = –1 goat.
  3. After 6 months total change = –1 × 6 = –6 goats.
  4. Final number = 15 – 6 = 9 goats.
Common mistake: Adding instead of subtracting sick goats

Concept tested: Population change in animal rearing

Published · How this solution was prepared and checked

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