Cash and cash equivalents $$620$

Investments in marketable securities $$300$

Receivables $$1,400$

Inventories $$1,100$

Prepaid expense and other current assets $$450$

Plant and equipment $$3,300$

Accounts payable $$1,600$

Bank loans payable within one year $$300$

Income taxes payable $$300$

Retained earnings $$1,700$

$"($A$)$ Compute the quick assets, the current assets, the current liabilities, the quick ratio, and the current ratio.

$($B$)$ Comment on quick and current ratios in relation to the industry."