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Bill is twice as old as his brother Dan. 12 years ago, Bill was eight times as old as Dan was. How old is Bill now?

 Aug 18, 2021
 #1
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Bill is 12 years old.

 Aug 18, 2021
 #2
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If Bill is 12 now, then 12 years ago Bill was 0.  How is that 8 times as old as Dan.  

 

B = 2D  

 

(B – 12) = 8 • (D – 12)  

 

(2D – 12) = 8D – 96  

 

84  =  6D 

 

Dan  =  14  

 

Bill  =  2D 

 

Bill  =  28 now      and Dan is 14 now    12 years ago they were 16 and 2  

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Guest Aug 18, 2021
 #3
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IMTHEBEAST  Aug 18, 2021
 #4
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Beast, what does that have to do with anything? 

Guest Aug 19, 2021

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