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Noah, John, and Max have sold a total of 350 books. Max sold 45 more books than Noah. John sold 40 fewer books than Noah. How many books did John sell?

 Jul 4, 2022
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N = what Noah sold

N + 45 = what Max sold

N -  40 = what John sold

 

N + N + 45 + N - 40 =  350

 

3N + 5 =  350

 

3N = 350 - 5

 

3N =  345

 

N = 345 /  5  =   69

 

N - 40  =   69 - 40  =   29  = what John sold

 

 

cool cool cool

 Jul 4, 2022

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