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Emily left home, riding her bicycle at a rate of 20 miles per hour. Fred left 1 hour later, riding at a rate of 30 miles per hour. How long will it take Fred to catch up to Emily?

Emily Left Home Riding Her Bicycle At A Rate Of 20 Miles Per Hour Fred Left 1 Hour Later Riding At A Rate Of 30 Miles Per Hour How Long Will It Take Fred To Cat class=

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