Bunuel wrote:

At a public housing conference 15 percent of the attendees are male. After the speaker finishes, several female attendees but no males leave the conference and the total number of persons remaining is 60 percent of the original number. The number of female attendees who leave is what fraction of the original number of females attending the conference?

(A) 11/20

(B) 9/17

(C) 8/17

(D) 9/20

(E) 2/5

Kudos for correct solution.

Let take the total no. = 100

Now 15% of total is male = 15% *100 =15 male

Therefore women = 100 -15 =85

No. of person left after female left is 60% of Total = 60% *100 =60

In this 60 people 15 are male, so female = 45

So Female left = 85-45=40

Therefore the fraction of the female who left to the original females attending the conferance = \(\frac{40}{85}\) = \(\frac{8}{17}\)

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