The above answer can be explained as under -
Given,
Current Liabilities = $ 4,590
Net working capital = $ 2,170
So, the current assets will be calculated as under -
Net working capital = Current assets - Current liabilities
$ 2,170 = Current assets - $ 4,590
Current assets = $ 2,170 + $ 4,590
Current assets = $ 6,760
The liquid or quick assets will be calculated as -
Current assets - Inventory = Quick assets
Quick assets = $ 6,760 - $ 3,860
Quick assets = $ 2,900.
Now,
1. Current ratio = 
Current ratio =
= 1.47
2. Quick ratio = 
Quick ratio =
= 0.63