At the end of 2015, Apple had cash and short-term investments of $42.01 billion, accounts receivable of $36.18 billion, current assets of $89.51 billion, and current liabilities of

$80.29 billion.

a. What was Apple's current ratio?

b. What was Apple's quick ratio?

c. What was Apple's cash ratio?

d. At the end of 2015, HPQ had a cash ratio of 0.31, a quick ratio of 0.75 and a current ratio of 1.14.

What can you say about the asset liquidity of Apple relative to HPQ?