Problema Solution
A man and his assistant can rake the sand on a beach volleyball court together in 24minutes. If his assistant could do it alone in 1hour, how many minutes would it take for the man to rake the court by himself?
Answer provided by our tutors
the rate of the assistant is 1/60 courts per min
the together rate is 1/24 courts per min
lets x = the minutes the man need to rake the court by himself thus his rate is 1/x courts per min
1/x + 1/60 = 1/24
by solving we find
x = 40 min
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the man can do the job alone in 40 minutes.