Question
Kimberly spent 15 h to complete her project in Geography. She spent 310 h more to complete her project in History than her project in Geography. How much time did she spend to complete her project in History?
3 m

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Kimberly spent 15 h to complete her project in Geography. She spent 310 h more to complete her project in History than her project in Geography. How much time did she spend to complete her project in History?