Bunuel wrote:
The enrollment at a middle school increased by 15 percent from the previous year. If the school’s present enrollment is 920 students, how many students were enrolled the previous year?
(A) 782
(B) 800
(C) 820
(D) 846
(E) 890
100% - ?
115% - 920 ==> ?=920*100%/115% = 800. Answer (B) 800



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