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You are to drive to an interview in another town, at a distance of 298 km on an expressway. The interview is at 11:10 A.M. You plan to drive at 100 km/h, so you leave at 8:00 A.M. to allow some extra time. You drive at that speed for the first 100 km, but then construction work forces you to slow to 38.0 km/h for 38.0 km. What would be the least speed needed for the rest of the trip to arrive in time for the interview?

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