Provide an appropriate response.If A, B, C, and D each stand for a different single digit from 1 to 9, and A + B + C = D, what is the smallest value that D can have? What digits can A, B, and C never be?
What will be an ideal response?
6. The maximum value of D is 9. Given that D is the sum of three different numbers A, B, and C, each can never be 7, 8, or 9 else D will become more than 9.
Mathematics
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+ 
on 
A. 
B. 
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