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Dan is 5 years older than David. Bridget is 8 years younger than David. If the total of their ages is 57, how old is the eldest of them

 Aug 28, 2020
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Let x be David's age. Dan's age is x+5, and Bridget's x-8. We add these together to get 57 and solve for x.

 

x+(x+5)+(x-8)=57

3x-3=57

3x=60

x=20 

 

Dan is the oldest out of them, and his age is 20+5=25.

 Aug 28, 2020

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