A standard admissions test was given at three locations- One thousand.pdf

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A standardized admissions test was given at three locations with 1000, 600, and 400 students respectively; the pass rates were 35%, 65%, and 50% respectively. If a random student who passed is selected, what is the probability they tested at location B?

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A standard admissions test was given at three locations. One thousand students took the test at
location A, 600 students at location B, and 400 students at location C. The percentages of
students from locations A, B, and C who passed the test were 35%, 65%, and 50%, respectively.
One student is selected at random from among those who took the test. Given that the selected
student passed the test, what is the probability that the student took the test at location B?

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