SOLUTION: Ron Wood can paint a room in 6 hr working alone. If his son, Jason, helps him, the job takes 4 hr. How long would it take Jason to do the job if he worked alone?
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-> SOLUTION: Ron Wood can paint a room in 6 hr working alone. If his son, Jason, helps him, the job takes 4 hr. How long would it take Jason to do the job if he worked alone?
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Question 126412This question is from textbook
: Ron Wood can paint a room in 6 hr working alone. If his son, Jason, helps him, the job takes 4 hr. How long would it take Jason to do the job if he worked alone? This question is from textbook
You can put this solution on YOUR website! Ron Wood can paint a room in 6 hr working alone. If his son, Jason, helps him, the job takes 4 hr. How long would it take Jason to do the job if he worked alone?
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A typical shared work equation:
:
Let t = time required if J works alone
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Let the completed job = 1; (each will do a fraction of the job)
: + = 1
:
Multiply equation by 6t to get rid of the denominators:
6t* + 6t* = 6t(1)
Cancel out the denominators, resulting in
:
4t + 6(4) = 6t
:
4t + 24 = 6t
:
24 = 6t - 4t
:
24 = 2t
:
t = 12 hrs, J working alone
:
Check solution: + = + = 1
