Question

A computer was priced at $850. You paid 20% in cash. How much was not paid in cash?

Answer 1

Hint/example:
An MP3 costs $85.
I paid 30% in cash. So I paid 85*0.3=25.50 in cash.
I still have to pay $85-25.5 = 59.50.

Answer 2

$680 dollars was not paid in cash.