SOLUTION: An old woman entered an elevator of a five-star hotel and wished to reach the ground floor. However, the elevator was being operated by a playful boy at that time. From there, the

Question 1087246: An old woman entered an elevator of a five-star hotel and wished to reach the ground floor. However, the elevator was being operated by a playful boy at that time. From there, the elevator went 6 floors up, 9 floors down, 12 more floors down, 8 floors up, and 7 floors down, At last, the old woman was able to exit from the elevator at the ground floor. On what floor did the old woman enter the elevator?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = the floor the woman entered on
From there, she went to:

then

You are told that this is ground level, or , so

She entered on the 14th floor
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check the math

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