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Bangladesh Mathematical Olympiad 2015, Secondary, P7

Source:

March 31, 2015
national olympiadgeometryalgebraareaCevas Theorem

Problem Statement

In triangle ABC\triangle ABC, the points A,B,CA', B', C' are on sides BC,AC,ABBC, AC, AB respectively. Also, AA,BB,CCAA', BB', CC' intersect at the point OO(they are concurrent at OO). Also, AOOA+BOOB+COOC=92\frac {AO}{OA'}+\frac {BO}{OB'}+\frac {CO}{OC'} = 92. Find the value of AOOA×BOOB×COOC\frac {AO}{OA'}\times \frac {BO}{OB'}\times \frac {CO}{OC'}.