Effects on current and quick ratio

If the firm uses its cash in bank to pay some of the payables, what is the effect on current and quick ratos? Let use figures to solve this:
Current assets = $75
Inventory = $30
Current liabilities = $50
Current ratio = $75/$50 = 1.5
Quick ratio = ($75-$30)/$50 = 0.9
The firm paid $30 of its payables using cash
Current ratio = ($75-$30)/($50-$30) = 2.25
Quick ratio = ($75-$30-$30)/($50-$30) = 0.75
Therefore, the current ratio will increase (1.5 to 2.25) and quick ratio will decrease (0.9 to 0.75)
I wonder if this is always the case?
Or the ratios can vary depend on the figures on the context? If so, then for question with no numbers, what will the effects be?