C-14-Q027mediumsingle_mcqIn △ABC\triangle ABC△ABC, DE∥BCDE \parallel BCDE∥BC. If AD=4AD = 4AD=4, DB=2DB = 2DB=2, AE=6AE = 6AE=6, then EC=?EC = ?EC=?a222b333c444d1212ব্যাখ্যাSince DE∥BCDE\parallel BCDE∥BC, ADDB=AEEC\frac{AD}{DB}=\frac{AE}{EC}DBAD, so . Solving gives .