More efficient and most efficient are the comparative and superlative forms of "efficient".
Yes, organizations can be efficient, but ineffective. Efficient means that they have little waste. Effective means that they are good at what they do.
computer maintenance is essential for effective and efficient management in an organization computer maintenance is essential for effective and efficient management in an organization computer maintenance is essential for effective and efficient management in an organization
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To be efficient means to be quick and effective at a job or task.
Effective means "able to get a task completed." Effective means "able to complete a task using the least possible amount of resources." Effective: How well you did. Efficient: Is the best way to do it.
How does cost accounting contribute to the effective and efficient management of and industrial establishment
productive, efficient, effective
works well, efficient
Efficient, operative, successful.
efficient
The noun form for the adjective effective is effectiveness.