Question

Stella walks down a flight of stairs to the basement. Then she walks back up the stairs and up another flight of stairs to the second floor of her house. Each flight of stairs represents a change of 12 feet in height. How far is Stella above the ground?

Answer 1

12 ft
Because if you start at ground level aka. 0 than go down 12 ft you would be at -12 than you go back up -12+12=0 than up 12 again 0+12=12 so you would be 12 ft above ground level

Answer 2

Based on the Stella's movement pattern, we can say that she is 12 ft above the ground.

Stella started at the ground level and then went down a flight of stairs. Relative to the ground she was:

= - 12 ft

She then went up two flights of stairs, each representing 12 ft gained:

= Height after going down + Height after climbing up

= -12 + 12 + 12

= 12 ft

In conclusion, Stella is 12 ft above the ground.

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