At a certain hospital, 75% of the interns receive fewer than 6 hours of sleep and report feeling tired during their shif

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by M7MBA » Fri Jan 28, 2022 8:37 am

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At a certain hospital, 75% of the interns receive fewer than 6 hours of sleep and report feeling tired during their shifts. At the same time, 70% of the interns who receive 6 or more hours of sleep report no feelings of tiredness. If 80% of the interns receive fewer than 6 hours of sleep, what percent of the interns report no feelings of tiredness during their shifts?

A. 6
B. 14
C. 19
D. 20
E. 81

Answer: C

Source: Manhattan GMAT

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Source: Beat The GMAT — Problem Solving | Fri Jan 28, 2022 8:37 am

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