Common EntranceQuantitative ReasoningWord Problems

Think of a number, double it, add 6, then divide by 2. The result is 9. What was the number?

A12
B9
C3
D6CORRECT
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Toaster Teacher
Why the answer is D, and why the others tempt you.
Work backwards: 9 x 2 = 18, 18 - 6 = 12, 12 ÷ 2 = 6.
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