Brother 23201

Karel would rake the leaves in the garden alone in 24 minutes. His younger brother would take 30 minutes. How long would they dig a garden if Karel digs alone for 6 minutes and his brother comes to his aid?

Correct answer:

t =  16 min

Step-by-step explanation:


6/24 + (t-6)·(1/24+1/30)=1

9t = 144


t = 144/9 = 16

t = 16

Our simple equation calculator calculates it.



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