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A lift starts at floor 0. It goes down 6 floors, then up 9 floors, then down 4 floors. What floor is the lift now?
Mathematics
ScanSolve AI Answer
Answer
-1
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Section C: Word Problems
- A lift starts at floor 0. It goes down 6 floors, then up 9 floors, then down 4 floors. What floor is the lift now?
The lift starts at floor 0.
It goes down 6 floors, so the position becomes .
It then goes up 9 floors, so the position becomes .
Finally, it goes down 4 floors, so the position becomes .
The calculation shown in your image is correct: $$ -6 + 9 + (-4) $$ $$ = 3 + (-4) $$ $$ = -1 $$ The lift is now at floor $-1$.
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