A farmer has 22 goats. Each goat needs 2 kg of feed per day. If a bag of feed weighs 10 kg and costs ₹30, how many bags of feed must he buy to feed all goats for 3 days?
Answer
14 bags
The correct answer is 14 bags — Step 5: The farmer must buy 14 bags of feed.
Step-by-step solution
- Step 1: Compute feed per day for all goats: 22 × 2 kg = 44 kg/day.
- Step 2: Compute feed for 3 days: 44 kg/day × 3 = 132 kg.
- Step 3: Divide total feed by weight of one bag: 132 kg ÷ 10 kg/bag = 13.2 bags.
- Step 4: Since a partial bag cannot be bought, round up to the next whole bag: 14 bags.
- Step 5: The farmer must buy 14 bags of feed.
Common mistake: Rounding down instead of up
Concept tested: Bag quantity calculation
Published · How this solution was prepared and checked
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