A delivery van travels between two logistic hubs. Its distance-time graph indicates that it traverses in . Calculate the average speed of the van.
Answer and explanation
Correct answer: C.
- Step 1: On a distance-time graph, the gradient represents the speed: .
- Step 2: Compute: .
Answer
.
Why not the others: '' is an arithmetic underestimation; '' calculates ; '' divides .
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