Question

olaf has 250 files on an external hard drive of those files 12% are photos.(a)write a percent proportion to find the number of files that are phots.(B) how many phots does olaf have saved on his external hard drive?

Answer 1

A) Olaf has 250 files, which represent 100%. 12% of that are photos which number is unknown (x).
250 files - 100%
x photos - 12%
So, the proportion should look like:
250 files : 100% = x : 12%

B) After crossing the products:
x = 250 files * 12% : 100%
x = 30 photos