# Working Capital, Current Ratio, Acid Test Ratio, ROE, ROI.

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Analysis of liquidity and profitability measures of Motorola, Inc. The following summarized data (amounts in millions) are taken from the December 31, 1999 and 1998 comparative financial statements of Motorola, Inc., a manufacturer of wireless communication devices, semiconductors, and advanced electronic systems.

a) Calculate Motorola, Inc.'s working capital, current ratio, and acid-test ratio at December 31, 1999, and 1998.

b) Calculate Motorola's ROE for the years ended December 31, 1999, and 1998.

c) Calculate Motorola's ROI, showing margin and turnover, for the years ended

December 31, 1999, and 1998.

d) Evaluate the company's overall liquidity and profitability. Comment specifically on the difficulties you have encountered in evaluating ROI and ROE for 1998.

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##### Solution Summary

The solution includes a step-by-step calculation of several ratios such as working capital, current ratio, and acid-test ratio, ROE, ROI. It also includes a brief analysis of the company's overall liquidity and profitability.

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a) Calculate Motorola, Inc.'s working capital, current ratio, and acid-test ratio at December 31, 1999, and 1998.

1998:

working capital = current assets / current liabilities

= 13531 / 11440

= 118%.

Current ratio = current assets / current liabilities

= 13531 / 11440

= 118%.

Acid-test ratio = (current assets - inventories) / current liabilities

= (13531 - 3745) / 11440

= 86%

1999:

working capital = current assets / current liabilities

= 16503 / 12416

= 133%.

Current ratio = current assets / current ...

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