SOLUTION: if a child sets out from school walking at a pace which will take 20 minutes to get home, and an adult sets out from home and at a pace that will take him 10 minutes to get to scho

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Question 237422: if a child sets out from school walking at a pace which will take 20 minutes to get home, and an adult sets out from home and at a pace that will take him 10 minutes to get to school, when will they meet? Also give an equation to your answer?
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
if a child sets out from school walking at a pace which will take 20 minutes to get home, and an adult sets out from home and at a pace that will take him 10 minutes to get to school, when will they meet? Also give an equation to your answer?
:
We can treat this as a "shared work" problem
Let the dist between the school and home = 1
Let t = time required for them to meet
:
t%2F20 + t%2F10 = 1
Multiply each term by 20
t + 2t = 20
3t = 20
t = 20%2F3
t = 62%2F3 min or 6 min 40 sec