Ramp-Up Challenge Bug : r/duolingo

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Earn XP Quickly with the Duolingo XP Ramp Up Challenge • Happily

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What's a “Ramp Up Challenge?” : r/duolingo

How to use the Duolingo Practice Test to identify your strengths

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XP Ramp Up Challenge by AJ Noh for Duolingo on Dribbble

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Ugh. Did the cost for the timed challenge just increase from 10 to