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A company has 400 employees, 20 percent of whom have 5 or more years

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A company has 400 employees, 20 percent of whom have 5 or more years [#permalink] New post   02 Feb 2017, 00:36
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Question Stats:

83% (01:36) correct 18% (01:47) wrong based on 80 sessions
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A company has 400 employees, 20 percent of whom have 5 or more years of work experience. If 40 additional employees are to be hired and all of the present employees remain, how many of the additional employees must have 5 or more years of work experience in order to raise the percent of employees with 5 or more years of work experience to 25 percent?

A. 10

B. 15

C. 20

D. 25

E. 30

Source: GmatFree
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E
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Re: A company has 400 employees, 20 percent of whom have 5 or more years [#permalink] New post   02 Feb 2017, 00:46
sillyboy wrote:
A company has 400 employees, 20 percent of whom have 5 or more years of work experience. If 40 additional employees are to be hired and all of the present employees remain, how many of the additional employees must have 5 or more years of work experience in order to raise the percent of employees with 5 or more years of work experience to 25 percent?

A. 10

B. 15

C. 20

D. 25

E. 30

Source: GmatFree


20% of 400 is 0.2 * 400 = 80 employees with 5 or more exp.

If that company hires 40 new employees, the total employees are 440.

25% of 440 is 0.25 * 440 = 110 employees with 5 or more exp.

The additional employees with 5 or more exp are: 110 - 80 = 30

The answer is E.

I think this question is sub 600 level.
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Re: A company has 400 employees, 20 percent of whom have 5 or more years [#permalink] New post   08 Feb 2017, 11:22
Expert Reply
sillyboy wrote:
A company has 400 employees, 20 percent of whom have 5 or more years of work experience. If 40 additional employees are to be hired and all of the present employees remain, how many of the additional employees must have 5 or more years of work experience in order to raise the percent of employees with 5 or more years of work experience to 25 percent?

A. 10

B. 15

C. 20

D. 25

E. 30


We are given that a company has 400 employees and that 0.2 x 400 = 80 employees have 5 or more years of work experience.

We need to determine, if 40 more employees were hired, how many of those employees would need to have 5 or more years of work experience in order to raise the percent of employees with 5 or more years of work experience to 25 percent.

We can create the following equation in which x = the number of additional employees who have 5 or more years of work experience:

(80+x)/(400 + 40) = 25/100

(80+x)/440 = 1/4

4(80+x) = 440

80 + x = 110

x = 30

Answer: E
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Re: A company has 400 employees, 20 percent of whom have 5 or more years [#permalink] New post   20 Jul 2022, 07:41
Expert Reply
A company has 400 employees, 20 percent of whom have 5 or more years of work experience. If 40 additional employees are to be hired and all of the present employees remain, how many of the additional employees must have 5 or more years of work experience in order to raise the percent of employees with 5 or more years of work experience to 25 percent?

A. 10

B. 15

C. 20

D. 25

E. 30
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Re: A company has 400 employees, 20 percent of whom have 5 or more years [#permalink]
20 Jul 2022, 07:41
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