I found the following DS question in Knewton's diagonistic test:


In year Y, the high school dropout rate was 3.3 percent, compared with 4.1 percent in year X. If the same number of students enrolled in high school at the beginning of both years, how many students dropped out in year Y?

1. In year X the number of high school dropouts among those students enrolled at the beginning of the year was 615,000.
2. 120,000 more students enrolled at the beginning of the year dropped out in year X than in year Y.



My doubt: the stem says that same number of students enrolled in high school at the beginning of both years. However, statement B implies that the number of students enrolled for both the years, x & y, is different. Am i interpreting something wrong?