Clases GMATHome > GMAT Focus Edition Data Insight QUESTION > Data Sufficiency > Probability > A total of 20 interns and 15 full-time employees work in the 35 offices of (...)
A total of 20 interns and 15 full-time employees work in the 35 offices of a company, with one person working in each office. One office is selected at random to get an upgraded desk. What is the probability that the office selected will be that of a female intern?
Difficulty: Sub-600 Level, Probability, Data Sufficiency (DS)
Monday 25 July 2022, by
A total of 20 interns and 15 full-time employees work in the 35 offices of a company, with one person working in each office. One office is selected at random to get an upgraded desk. What is the probability that the office selected will be that of a female intern?
(1) Of the interns, 15 of them are female.
(2) Of the interns, 5 of them are male.
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EXPLANATION:
Total number of people/offices = 35
What we need number of female intern/offices.
If this is known probability can be found. How.?
that number/ total number
(1) Of the interns, 15 of them are female.
We got that number sufficient.
(2) Of the interns, 5 of them are male.
Number of female intern = 15.
We got that number sufficient.
A is sufficient B is sufficient.
D is the answer.