D and E are points on the sides AB and AC respectively of ΔABC such that DE is parallel to BC and AD : DB = 4 : 5, CD and BE intersect each other at F. Then the ratio of the areas of ΔDEF and ΔCBF

D and E are points on the sides AB and AC respectively of ΔABC such t

1.	D and E are points on the sides AB and AC respectively of ΔABC such that DE is parallel to BC and AD : DB = 4 : 5, CD and BE intersect each other at F. Then the ratio of the areas of ΔDEF and ΔCBF
A.	16 : 25
B.	16 : 81
C.	81 : 1
D.	4 : 9
Answer» C. 81 : 1

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D and E are points on the sides AB and AC respectively of ΔABC such that DE is parallel to BC and AD : DB = 4 : 5, CD and BE intersect each other at F. Then the ratio of the areas of ΔDEF and ΔCBF

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