App Detail » Handy Rule of Three

What's New

This app has been updated by Apple to use the latest Apple signing certificate.

Handy Rule of Three 2.0 is here!

– New user interface

– No intrusive ads

App Description

This is a Handy Rule of Three that will help you out to solve those little math problems you may encounter in your daily life.

Handy Rule of Three supports the direct and inverse rule of three.

Direct mode C*B/A
If an exam has 30 questions which makes 100%
What percentage makes 24 correct answers?

x= 20*100/30
x= 80

Inverse mode A*B/C:
If making dinner takes 3 hours to 2 people.
How long would it take to 1 person?

x= 3*2/1
x= 6

App Changes

• June 16, 2014 Initial release
• January 03, 2017 New version 2.0