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08 Oct 2021, 07:45
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D
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
95%
(hard)
Question Stats:
34% (02:52) correct
66%
(03:01)
wrong
based on 64
sessions
History
Date
Time
Result
Not Attempted Yet
In an investigation, it was found that 20% of the employees who are vulnerable to Mycobacterial infection are less than 17 years of age and 30% of the employees who are not vulnerable to Mycobacterial infection are more than or equal to 17 years of age. If 16% of total employees are more than or equal to 17 years of age and are vulnerable to Mycobacterial infection, then what percentage of the employees, that are 17 years old or more, are not vulnerable to Mycobacterial infection?
(A) 16.6%
(B) 24%
(C) 30%
(D) 60%
(E) 80%
(A) 16.6%
(B) 24%
(C) 30%
(D) 60%
(E) 80%
17 Oct 2021, 05:17
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Bunuel
Please refer to the attached fig.
Attachment:
table for Gmat 2.png [ 7.54 KiB | Viewed 2971 times ]
\(.20x +16 = x\)
\(4x= 80\)
\(x= 20 \)
If \(x=20\) then \(y = 80\)
Hence \( .30y= .30 *80= 24\)
Hence More than and equal to 17 \(->16 +24 = 40\)
Required percentage \(\frac{24}{40}*100 = 60\)
Ans-D
Hope it's clear.
03 Nov 2021, 07:51
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