Question
Gwen took 35 min to bake a cupcake. If she started baking at 15 40, at what time did she finish baking the cupcake?(Give your answer using 24-hour clock)
2 m

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Gwen took 35 min to bake a cupcake. If she started baking at 15 40, at what time did she finish baking the cupcake?(Give your answer using 24-hour clock)