An easy one...

What is ten percent of three hundred dollars? 10% = $30. To now answer your question, if 10% is $30, then 20% is, um, er, let me see, if 20 is 10X2, then 20% is 10%X2. So if 10% = $30, then 20% of $300 is $60.

Agree?

What is ten percent of three hundred dollars? 10% = $30. To now answer your question, if 10% is $30, then 20% is, um, er, let me see, if 20 is 10X2, then 20% is 10%X2. So if 10% = $30, then 20% of $300 is $60.

Agree?