# it took Helen 3 hours to do a page of science homework exercises

Work Rate Problem

On Monday it took Helen 3 hours to do a page of science homework exercises.

The next day she did the same number of exercises in 2 hours.

If her average rate on Monday was p exercises per hour, what was her average rate the next day in terms of p?

### Comments for it took Helen 3 hours to do a page of science homework exercises

 Jun 25, 2014 Work Rate Problem by: Staff Answer p = average exercises per hour on Monday q = average exercises per hour on Tuesday 3 hrs * p exercises per hour = total exercises on Monday 2 hrs * q exercises per hour = total exercises on Tuesday total exercises on Tuesday = total exercises on Monday 2 hrs * q exercises per hour = 3 hrs * p exercises per hour Solve for q Divide each side of the equation by 2 hours (2 hrs * q exercises per hour) / (2 hrs) = (3 hrs * p exercises per hour) / (2 hrs) q exercises per hour = (3/2) * (p exercises per hour) final answer Helen’s average rate on Tuesday in terms of p Helen’s average exercises per hour on Tuesday = (3/2) * (p exercises per hour) Thanks for writing. Staff www.solving-math-problems.com

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