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A mathematician works for t hours per day and solves p problems per hour, where t and p are positive integers and 1 < p <20. One day, the mathematician drinks some coffee and discovers that he can now solve 3p + 7 problems per hour. In fact, he only works for t-4 hours that day, but he still solves twice as many problems as he would in a normal day. How many problems does he solve the day he drinks coffee?

 Mar 15, 2022
 #1
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See answer #2 here:  https://web2.0calc.com/questions/the-powers-of-coffee-in-mathematicians

 Mar 15, 2022

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