performance measurement-acid test ratio

The following summarised statement of financial position is available for L, a limited liability company: Non-current assets $31,250 Current Assets Inventory $35,000 receivables $40,000 cash $1,250 total $76,250 Equity and liabilities capital and reserve $67,500 current liabilities ( payables only) $60,000 total $107500 what is the acid test ratio? A. 0.6875 B.0.7093 C.1.2708 D.2.0 ( correct answer is A) my working : the ratio of current assets less inventories / current liabilities 76250 - 35000 / 60000 = 0.6875 my answer is A Sir, may i know to less inventory because the total CA is included costs of inventory therefore need to exclude it ? if my working as the following is the same concept? 40000 + 1250 / 60000 = 0.6875 thank you