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Sunday, May 6, 2007
MATH QUESTION OF THE DAY
If in a certain school 20 students are taking math and 10 are taking history and 7 are taking both, how many students are taking either math or history? (A) 20 (B) 22 (C) 23 (D) 25 (E) 29
c
ReplyDeletei think C
ReplyDeleteits c
ReplyDeletec is the aswer bcoz P(A U B)=P(A)+P(b)-P(A n B)
ReplyDeleteC
ReplyDelete