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The temperature in a chemical plant was -5oC at 2.00 am. The temperature fell by 6oC ...

The temperature in a chemical plant was -5oC at 2.00 am. The temperature fell by 6oC and then rose again by 7oC. What was the final temperature?
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  • A -6oC
  • B -4oC
  • C 4oC
  • D 8oC
Correct Answer: Option B
Explanation:
Temperature = -5oC
It fell by 6oC = -5oC - 6oC
= -11oC
Then rose by 7oC = -11 + 7
= -4oC (final temperature)

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