Engineering Economics
Return on investment ratio is the ratio of the:

Net credit sales to average net receivable
Net income to owner’s equity
Market price per share to earnings per share
Cost of goods sold to average cost of inventory at hand

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Engineering Economics
The key to profitable operation for project cost control, is:

To keep the project cost equal to subsequent construction budget
To keep the project cost equal to original cost estimate
To keep the project cost within the cost budget and knowing when and where job costs are deviating
None of these

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