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Rates & proportional relationships

Miguel Indurain, a five-time winner of the Tour de France, has the lowest recorded resting heart rate, 2828 beats per minute (bpm)(\text{bpm}). This is less than half the normal rate, which is about 66 bpm66\text{ bpm}.
Which of the following equations, where tt represents time in minutes and BB the number of beats, represents a heart rate greater than Indurain's?