There are two methods actually. But I want to post this method because it is faster to solve the question. I will post the other method if you find this one too hard to understand. The question is taken from my workbook. No copyright infringement though.
Question: The temperature of a piece of metal was 32 degrees. It was then lowered into a glass of hot water and the temperature of the piece of metal increased to 36 degrees. Find the percentage increase in temperature of the piece of metal.
Step 1: Find the difference between 36 degrees and 32 degrees.
36 degrees-32 degrees = 4 degrees
Step 2: Put 4 degrees over 32 degrees. Then multiply this fraction by 100%.
4/32 x 100% = 12.5%
The method is easy, right? Only two steps. But it was somehow hard for me to remember in a way when I haven't put this in the blog.
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