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?
- -6oC
-
-4oC
- 4oC
- 8oC
The correct answer is: B
Explanation
Temperature = -5oCIt fell by 6oC = -5oC - 6oC
= -11oC
Then rose by 7oC = -11 + 7
= -4oC (final temperature)