Mathematics, 13.07.2019 17:10, LadyHolmes67

Jack typed 80 words per minute when he enrolled in a typing course. his typing speed increased by 3% two weeks into the course. at the end of the course, jack was able to type his entire 1, 680 word document in 20 minutes. what was the percent of increase in his typing speed from the beginning of the course to the end? a 3% b 4% c 5% d 6% e 7%

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Jack typed 80 words per minute when he enrolled in a typing course. his typing speed increased by 3%...