- A5
- B4
- C8
- D3
Step-by-Step Solution
Start at 0, go down 3: 0 + (−3) = −3. Then up 7: −3 + 7 = 4. The lift stops on floor 4.
Answer: B) 4
A lift starts at floor 0 (ground), goes down 3 floors, then up 7 floors. On which floor does it stop? (Floors below ground are negative.)
Class 6IntegersIntegers
Key idea: Adding integers — same sign
When two integers have the **same sign**, add their absolute values and keep the sign. So 4 + 3 = 7 (both positive → result positive), and (−4) + (−3) = −7 (both negative → result negative). On the number line: same sign means you keep moving in the same direction.
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