Brain Teasers
Division
When A is divided by B, the quotient is C and the remainder is D. B, C, D are 1-digit numbers. What are the maximal and minimal values of A?
Answer
A=BC+D.For the maximal value of A, B and C have to be 9, and D is at most 8, A=9*9+8=89.
For the minimal value of A, B is at least 2(otherwise there's no remainder), and C and D have to be 1, A=2*1+1=3.
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