At a two-day seminar, 90 percent of those registered attended the seminar on the first day. What percent of those

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At a two-day seminar, 90 percent of those registered attended the seminar on the first day. What percent of those registered did not attend the seminar on either day?

(1) A total of 1,000 people registered for the two-day seminar.

(2) Of those registered, 80 percent attended the seminar on the second day.


OA E

Source: GMAT Prep