Re: What could be the values of $x+y$, in the 8 digit number $887980 x y$,
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05 Apr 2025, 04:00
OFFICIAL EXPLANATION
The number $\(887980 x y\)$ is divisible by 3 , only when the sum of its digits, i.e., $\(8+8+7+9+8+0+x+y=40+x+y\)$ is divisible by 3 .
Therefore, $\(x+y\)$ could be $\(2,5,8,11,14\)$, or 17 .
Since the given number is also divisible by 8 , the number formed by the last three digits, i.e., $x y$ should be divisible by 8 .
Therefore, $\(x y\)$ could be $\(08,16,24,32,40,48,56,64,72,80,88\)$ or 96 .
Combining both the conditions, the possible values of $\(x y\)$ could be 08,32 , and 56 .
Hence, the values of $\(x+y\)$ could be 8,5 , and 11 .
Thus, the correct answer choices are $B, D$ and $G$.