Question 1205411: How did the tempruature change?
First it increased by 5%, and then it increased by 20%
Answer by ikleyn(52776)   (Show Source):
You can put this solution on YOUR website! .
How did the tempruature change?
First it increased by 5%, and then it increased by 20%
~~~~~~~~~~~~~~~~~~~~
Let T be the initial temperature.
Then after first increase the temperature becomes T*(1+0.05) = 1.05T.
After the second increase, the temperature becomes 1.05T*(1+0.2)T = 1.05*1.2T = 1.26T.
The final increase is 26%, comparing to initial temperature.
Solved.
----------------------
If you want to see many other similar (and different) solved problems, look into the lesson
- Percentage problems on chains of discounts
in this site.
|
|
|
