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A mathematician works for t hours per day and solves p problems per hour, where  and  are positive integers. One day, the mathematician drinks some coffee and discovers that he can now solve 4p+5 problems per hour. In fact, he only works for t-3 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?

 Jun 7, 2024
 #1
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Very similar question

https://web2.0calc.com/questions/help-plz_49013

 

Thanks! :)

 Jun 7, 2024

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