Question: Paula is training for a marathon. Her training includes a long run every Sunday which increases in length by 2 km per week. After her

 Paula is training for a marathon. Her training includes a long

run every Sunday which increases in length by 2 km per week.

Paula is training for a marathon. Her training includes a long run every Sunday which increases in length by 2 km per week. After her Sunday runs total a distance of 252 km she changes her plan to reduce her milage. If her longest Sunday run was 31 km, how long was her run on the first Sunday?

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