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प्रश्न
A lift is on the ground floor. If it goes 5 floors down and then moves up to 10 floors from there. Then in which floor will the lift be?
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उत्तर
Initially the lift will be in the ground floor representing ‘0’
It goes to 5 floors down ⇒ – 5
Then it moves 10 floors up +10.
Now the lift will be = 0 – 5 + 10 = – 5 + 10
= 5th floor ...(above the ground floor)
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