The Math Beast Challenge Problem of the Week – April 1, 2013
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Each week, we post a new Challenge Problem for you to attempt. If you submit the correct answer, you will be entered into that week’s drawing for two free Manhattan Prep GRE Strategy Guides.Keran spent 5 minutes climbing the first
of the stair steps between the ground floor and his office, 5 minutes climbing the next
of the steps, and 5 minutes climbing the remaining steps. If Keran climbed 168 more steps in the first 5 minutes than in the last 5 minutes, what was Keran’s average number of steps per minute for the entire climb?
of the stair steps between the ground floor and his office, 5 minutes climbing the next 
of the steps, and 5 minutes climbing the remaining steps. If Keran climbed 168 more steps in the first 5 minutes than in the last 5 minutes, what was Keran’s average number of steps per minute for the entire climb?
See the answer choices and submit your pick over on our Challenge Problem page.