Theory:

In the previous topics, we learnt how to find the value of the unknown variable if it is in either direct variation or inverse variation.
 
Can you solve a problem if it has two or more variations in it?
 
Yes, we can solve them. This leads to the new concept called compound variation.
If two or more variations occur in a proportion, then it is called compound variation.
Types of compound variation:
  • Direct - Direct variation
  • Direct - Inverse variation
  • Inverse - Direct variation
  • Inverse - Inverse variation