Discussion
A number becomes double if it is increased by 8. What is the number ?
Answer: B
The number is 8.
Let the number be \(x\). Increasing it by 8 doubles it:
\[ \begin{aligned} x + 8 &= 2x \\ x &= 8 \end{aligned} \]
Check: 8 + 8 = 16, which is double 8. For the other options, 6 + 8 = 14 (not 12), 12 + 8 = 20 (not 24) and 16 + 8 = 24 (not 32), so none of them doubles.
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