If the speed limit of a highway is 60 mph, which car exceeded the speed limit? Assume all the cars were traveling at a constant speed.

Find each car’s constant speed by dividing distance by time. Car A traveled 183 ÷ 3 = 61 mph, which is above the 60 mph limit. The other cars traveled 236 ÷ 4 = 59 mph, 290 ÷ 5 = 58 mph, and 342 ÷ 6 = 57 mph, so only car A exceeded the limit.

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