Bunuel wrote:
At a certain company, employees who earn $20.00 per hour will be given an increase of $1.00 per hour. For each of the other employees, either the employee will be given an increase of $1.00 per hour or the employee will be given a percent increase equal to the percent increase that will be given to the employees who earn $20.00 per hour, whichever results in a larger increase for that employee. Which of the following statements are true?
I. An employee who earns less than $20.00 per hour will be given a percent increase that is greater than the percent increase that will be given to the employees who earn $20.00 per hour.
II. An employee who earns $22.00 per hour will be given an increase of $1.10 per hour.
III. An employee who earns $24.00 per hour will earn $25.20 per hour after the increase.
A. I only
B. II only
C. III only
D. I and II only
E. I, II, and III
Are You Up For the Challenge: 700 Level QuestionsThis tells us three things
(a) that <20.00$ will lead to an increase of $1.00
(b) that >$20.00 will lead to a percent increase equal to 100*1/20 or 5%
(c) that =20.00$ will lead to an increase of $1.00
Now we are looking at MUST be true question
I. An employee who earns less than $20.00 per hour will be given a percent increase that is greater than the percent increase that will be given to the employees who earn $20.00 per hour.
1 will be a greater percentage of <20.00 that for 20.00.
On an amount of 20, 1 gives 5%, but for an amount 10, it will be 100*1/10=10%, so on amounts less than 20, it will always be >5%.
True
II. An employee who earns $22.00 per hour will be given an increase of $1.10 per hour.
The employee will get a 5% increase, so increase =22*5/100=1.1$
True
III. An employee who earns $24.00 per hour will earn $25.20 per hour after the increase.
The employee will get a 5% increase, so amount=24+24*5/100=24+1.2$=25.20$
True
All three true
E
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