Data Sufficiency (DS) | Two groups of students, X and Y, took the same test. If the average

Two groups of students, X and Y, took the same test. If the average (arithmetic mean) score form group X was 68.2, what was the average score for the combined group?

(1) The average score for group Y was 73.5
(2) Group X had 20 more students than group Y

Statistics : Posted by Bunuel • on 18 Nov 2022, 04:02 • Replies 0 • Views 9

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