GMAT Verbal Reasoning Practice Test 5

Question : 21 of 100

Marks: +1, -0

In comparison to the standard typewriter keyboard, the EFCO keyboard, which places the most-used keys nearest the typist’s strongest fingers, allows faster typing and results in less fatigue, Therefore, replacement of standard keyboards with the EFCO keyboard will result in an immediate reduction of typing costs.
Which of the following, if true, would most weaken the conclusion drawn above?

People who use both standard and EFCO keyboards report greater difficulty in the transition from the EFCO keyboard to the standard keyboard than in the transition from the standard keyboard to the EFCO keyboard.
EFCO keyboards are no more expensive to manufacture than are standard keyboards and require less frequent repair than do standard keyboards.
The number of businesses and government agencies that use EFCO keyboards is increasing each year.
The more training and experience an employee has had with the standard keyboard, the more costly it is to train that employee to use the EFCO keyboard.
Novice typists can learn to use the EFCO keyboard in about the same amount of time it takes them to learn to use the standard keyboard.

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