Question

21 trucks, each with a 2.5-ton payload, are needed to unload a freight train. c How many trucks, each with a 3.5-ton payload, would be needed to do the same job?

Answer 1

Approximately 30 trucks, each with a 3.5-ton payload, would be needed to unload the same freight train.

Step-by-step explanation:

To unload a freight train with 2.5-ton payloads, 21 trucks would be needed. To find out how many trucks with 3.5-ton payloads would be needed to do the same job, we can set up a proportion.

Since the number of trucks is inversely proportional to the weight of the payloads, we can use the following proportion:

2.5 tons : 3.5 tons = 21 trucks : x trucks

Cross-multiplying, we get 2.5x = 3.5 * 21. Solving for x, we find that x is approximately 29.4.

Therefore, approximately 29 or 30 trucks, each with a 3.5-ton payload, would be needed to unload the same freight train.

Answer 2

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