Bounding a rate

Bounding a rate

TGM Original

A car travels \(180\text{ km}\), correct to the nearest kilometre, in \(2.4\text{ h}\), correct to the nearest tenth of an hour. Find the upper bound for its average speed, giving the unrounded quotient before a three-significant-figure value.

Solution:

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Answer:\(\dfrac{3610}{47}\text{ km/h}\approx76.8\text{ km/h}\)

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