The download button opens the iTunes App Store, where you
may continue the download process. You must have iTunes installed with an
active iTunes account in order to download and install the software. This
download may not be available in some countries.
Thanks for using Handy Rule of Three!Now you will be able to toggle from the direct rule of three (C*B/A) to the inverse rule of three (A*B/C). Just press the equal symbol "=" to toggle from mode to another.Also the apps gets a brand new icon, a prettier font for the numbers, and a faster loading time when the app is first launched!Direct mode:If an exam has 30 questions which makes 100%What percentage makes 24 correct answers?x= 20*100/30x= 80Inverse mode:If making dinner takes 3 hours to 2 people. How long would it take to 1 person?x= 3*2/1x= 6