Help me asap!

Question

Kendal, a marathon runner who weighs 162 pounds, will burn 350 in 45 minutes of running at a marathon pace. While preparing for an upcoming marathon that takes an average athlete 6 1/2 hours to run, is calculating how many of the 5 rest stations he should stock with his supplemental beverage. The beverage pack provides needed electrolytes and 350 calories. The goal is to replace approximately a third of the calories burned. How many stations should he stock? show your work and explain your strategy.

Answer 1

"will burn 350 in 45 minutes...   What's being burned?  

There's also peculiar English in the second sentence "6 1/2 hours to run, is calculating" --that should be rewritten for clarity.