After five weeks of dating, Terri concludes she knows next to nothing about her boyfriend, James, even though she has shared a w
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Let x be the time it takes Elias and Niko to polish the silver working together. If Elias works alone, he could polish all the silver himself in 40 minutes. Then, in 1 minute, he will make of the total work. If the same analysis is applied Niko, in 1 minute, will make
of the total work.
Working together Elias and Niko will need x minutes to make all the work. Then, in 1 minute, they will make of the total work. So, the fraction of the total work they make in 1 minute is given by this equation: