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The lift display shows the floor where the lift is now. It goes down to the predecessor of that floor to pick up Kavya, then up to the successor of the successor of Kavya's floor. At which floor does it stop now?

Class 6Successor and PredecessorWhole Numbers
  • A11
  • B10
  • C9
  • D8

Step-by-Step Solution

The lift is at floor 9. The predecessor of 9 is 8 (Kavya's floor). The successor of 8 is 9, and the successor of 9 is 10. (11 forgets to go down first; 8 is Kavya's floor.)
Answer: B) 10

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