A family of 4 wants to deliver 10 baskets of fruits (each 1 kg) to Grandmother’s house which is 4 km away. They use a cart that can carry 3 baskets at a time. Each round trip (including loading, walking, and unloading) takes 12 minutes. How many minutes will they take to deliver all baskets and return home?
Answer
48
The correct answer is 48 — Thus, the family will take 48 minutes.
Step-by-step solution
- Each basket weighs 1 kg and there are 10 baskets, but the weight is not needed for time calculation.
- Cart capacity is 3 baskets, so number of trips required = ceil(10/3)=4.
- Each round trip takes 12 minutes.
- Total time = 4 trips × 12 minutes = 48 minutes.
- Thus, the family will take 48 minutes.
Common mistake: Forgetting to round up the number of trips
Concept tested: Time calculation using cart capacity
Published · How this solution was prepared and checked
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