Question
If two people working together can do a job in 4 hours how long will it take the slower person to do the same job if one of them is 3 times as fast as the other?
Answers
Steve
If the quicker person takes x hours, then the slower person takes 3x hours.
1/x + 1/3x = 1/4
12+4=3x
x = 16/3
so, 3x = 16 hours for the slowpoke.
1/x + 1/3x = 1/4
12+4=3x
x = 16/3
so, 3x = 16 hours for the slowpoke.