SingaporeAccountingSyllabus dot point

How do liquidity and efficiency ratios measure a business's ability to meet short-term obligations and manage working capital?

Calculate and interpret the current ratio, quick ratio and working-capital efficiency ratios

A focused answer to the H2 Principles of Accounting outcome on liquidity and efficiency. The current and quick ratios, inventory turnover, receivables and payables days, the cash cycle, and how to interpret them together.

Generated by Claude Opus 4.810 min answerUpdated 2026-06-06

Reviewed by: AI editorial process; not yet individually human-reviewed

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What this dot point is asking
The answer
Examples in context
Try this

What this dot point is asking

SEAB wants you to calculate and interpret liquidity ratios (can the business pay its short-term debts?) and efficiency ratios (how well does it manage working capital?). These ratios answer the survival question that profitability ignores: a profitable business that cannot pay its bills still fails. The central insight is that liquidity is about the relationship between short-term assets and liabilities, while efficiency is about how quickly working capital cycles into cash.

The answer

Liquidity ratios

Ratio	Formula	Measures
Current ratio	$\dfrac{\text{current assets}}{\text{current liabilities}}$	Cover of short-term liabilities by short-term assets
Quick (acid-test) ratio	$\dfrac{\text{current assets} - \text{inventory}}{\text{current liabilities}}$	Cover excluding the least liquid asset

The current ratio includes all current assets; the quick ratio strips out inventory, which can be slow to convert to cash. A quick ratio around $1:1$ is often seen as comfortable, but the right level depends on the industry.

Efficiency (working-capital) ratios

Ratio	Formula	Measures
Inventory turnover (times)	$\dfrac{\text{cost of sales}}{\text{average inventory}}$	How many times inventory is sold per year
Inventory holding period	$\dfrac{\text{average inventory}}{\text{cost of sales}} \times 365$	Days stock is held
Receivables collection period	$\dfrac{\text{trade receivables}}{\text{credit sales}} \times 365$	Days customers take to pay
Payables payment period	$\dfrac{\text{trade payables}}{\text{credit purchases}} \times 365$	Days the business takes to pay suppliers

The cash cycle

These efficiency ratios combine into the cash (operating) cycle:

\text{Cash cycle} = \text{inventory days} + \text{receivables days} - \text{payables days}

A shorter cycle means cash returns faster; a long cycle ties cash up in working capital. This is why a profitable firm with slow-moving stock and slow-paying customers can still face a cash shortage, the link between these ratios and the statement of cash flows.

Worked example

A wholesaler reports: current assets $\$ 200,000 $(inventory$ \ $80\,000$ , receivables $\$ 70,000 $, bank$ \ $50\,000$ ); current liabilities $\$ 100,000 $; cost of sales$ \ $600\,000$ ; credit sales $\$ 700,000 $; credit purchases$ \ $500\,000$ ; trade payables $\$ 50,000$. Average inventory equals the year-end figure. Assess liquidity and the cash cycle.

Step 1: Liquidity ratios

Current ratio $= \dfrac{200\,000}{100\,000} = 2.0$ . Quick ratio $= \dfrac{200\,000 - 80\,000}{100\,000} = \dfrac{120\,000}{100\,000} = 1.2$ .

Step 2: Inventory and receivables days

Inventory days $= \dfrac{80\,000}{600\,000} \times 365 \approx 49 \text{ days}$ . Receivables days $= \dfrac{70\,000}{700\,000} \times 365 \approx 37 \text{ days}$ .

Step 3: Payables days

\frac{50\,000}{500\,000} \times 365 \approx 37 \text{ days}

Step 4: The cash cycle

\text{Cash cycle} = 49 + 37 - 37 = 49 \text{ days}

Cash is tied up for about $49$ days between paying for stock and collecting from customers. Liquidity looks sound (current $2.0$ , quick $1.2$ ), but management could shorten the cycle by holding less stock or collecting faster, freeing cash, which is exactly the kind of recommendation examiners reward.

Examples in context

Example 1. The acid test in a stock-heavy business. A furniture retailer shows a healthy current ratio of $2.5:1$ , but most of its current assets are slow-selling inventory. Its quick ratio is only $0.6:1$ , revealing that without selling stock it cannot cover its short-term debts. The quick ratio exposes a liquidity risk that the current ratio masks, which is precisely why both are reported.

Example 2. Shortening the cash cycle. A manufacturer with a $90$ -day cash cycle negotiates faster payment from customers (cutting receivables days from $50$ to $35$ ) and longer credit from suppliers (raising payables days from $30$ to $45$ ). The cash cycle shrinks to about $60$ days, releasing cash without changing profit. This shows how efficiency ratios translate directly into improved liquidity and cash flow.

Try this

Q1. Current assets are $\$ 90,000 $(inventory$ \ $30\,000$ ); current liabilities $\$ 45,000$. Find the current and quick ratios. [3 marks]

Cue. Current $= \dfrac{90\,000}{45\,000} = 2.0$ ; quick $= \dfrac{90\,000 - 30\,000}{45\,000} = \dfrac{60\,000}{45\,000} \approx 1.33$ .

Q2. Credit sales are $\$ 365,000 $and trade receivables are$ \ $50\,000$ . Find the collection period. [2 marks]

Cue. $\dfrac{50\,000}{365\,000} \times 365 = 50 \text{ days}$ .

Q3. Explain why holding too much inventory can harm liquidity even though it appears as a current asset. [3 marks]

Cue. Inventory is the least liquid current asset; cash is tied up in unsold stock that may be slow or costly to convert, lengthening the cash cycle and reducing funds available to pay short-term obligations.

Exam-style practice questions

Practice questions written in the style of SEAB exam questions on this dot point, with worked answer explainers. The year tag is the paper they imitate, not the source.

Original7 marksA business has current assets of

\

120\,000

(including inventory

45\,000

) and current liabilities of

\

60\,000

. Credit sales were

540\,000

and trade receivables are

\

60\,000$. (a) Calculate the current ratio, the quick ratio and the trade receivables collection period (in days). (b) Comment on the liquidity position.

Show worked answer →

(a) Current ratio $= \dfrac{\text{current assets}}{\text{current liabilities}} = \dfrac{120\,000}{60\,000} = 2.0 \text{ (or } 2:1)$ .

Quick ratio $= \dfrac{\text{current assets} - \text{inventory}}{\text{current liabilities}} = \dfrac{120\,000 - 45\,000}{60\,000} = \dfrac{75\,000}{60\,000} = 1.25 \text{ (or } 1.25:1)$ .

Receivables collection period $= \dfrac{\text{trade receivables}}{\text{credit sales}} \times 365 = \dfrac{60\,000}{540\,000} \times 365 \approx 41 \text{ days}$ .

(b) A current ratio of $2:1$ and a quick ratio of $1.25:1$ suggest the business can comfortably cover its short-term obligations, even without selling inventory. Collecting receivables in about $41$ days is reasonable. Overall liquidity looks healthy, though the ideal depends on the industry.

Markers reward the three ratios with formulae, the $41$ -day collection period, and a reasoned comment on liquidity.

Original6 marksExplain the difference between the current ratio and the quick ratio, and why a high inventory turnover period combined with a long receivables period can cause cash flow problems even for a profitable firm.

Show worked answer →

The current ratio ( $\dfrac{\text{current assets}}{\text{current liabilities}}$ ) measures whether current assets cover current liabilities. The quick (acid-test) ratio excludes inventory ( $\dfrac{\text{current assets} - \text{inventory}}{\text{current liabilities}}$ ), because inventory is the least liquid current asset and may take time to sell. The quick ratio is a tougher test of immediate liquidity.

A long inventory holding period means cash is tied up in unsold stock for a long time. A long receivables collection period means customers take a long time to pay. Together they lengthen the cash cycle: the business pays for goods and incurs costs long before it converts inventory and collects cash. Even a profitable firm can then run short of cash, because profit is earned on the accrual basis while cash is locked in working capital.

Markers reward the inventory exclusion in the quick ratio, the reasoning that it is a stricter liquidity test, and the cash-cycle explanation linking long inventory and receivables periods to cash shortages.