SOLUTION: working together nathaniel and his little sister asha can rake leaves in their backyard in 12 mins working alone asha can take leave in 30 mins how long would it take nathaniel to
Question 1115230: working together nathaniel and his little sister asha can rake leaves in their backyard in 12 mins working alone asha can take leave in 30 mins how long would it take nathaniel to rake the leaves on his own? Answer by ikleyn(52751) (Show Source):
Shortly speaking, in = = = 20 minutes.
The detailed solution is THIS:
Working together, they make of the job per minute.
Working alone, Asha makes of the job per minute.
Hence, Nathaniel makes = = = of the job per minute.
It means that Nathaniel will make all the job in 20 minutes working alone.
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It is a typical joint work problem.
