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| Math Central | Quandaries & Queries |
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Question from jake, a student: two jets are traveling towards each other and are 4000 km apart. the rate of one jet is 100 km/h faster than the rate of the other. if the jets pass each other after 2.5 hrs what is the rate of speed of the faster jet? |
Hi Jake,
Suppose the slower jet travels at s km/h. How fast does the faster jet travel? At what rate is the distance between them decreasing? Use that fact that rate = distance/time to set up an equation and solve it for s.
Penny
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