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Alja [10]
3 years ago
9

An elevator in an office building made the following moves: Up 7 floors, down 14 floors, up 6 floors, down 2 floors, up 9 floors

, down 5 floors. If the elevator stopped on the 54th floor, what floor did it start on?
Mathematics
1 answer:
kolezko [41]3 years ago
8 0

Answer:

It started on the 55th floor.

Step-by-step explanation:

We can work backwards from the 54th floor. Since we are working <em>backwards</em>, if the elevator goes up, we will subtract and if it goes down, we will add. Starting with 54, we get 54 + 5 = 59, then 59 - 9 = 50, then 50 + 2 = 52, then 52 - 6 = 48, then 48 + 14 = 62, then 62 - 7 = 55.

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