Direction: Read the given information carefully and answer the following questions.

There are six friends A, B, C, D, E and F. Each one likes different colours - Red, Blue, Black, Yellow, White and Green. They also purchase different test series namely Testbook, Adda247, Practice mock, Gradeup, Oliveboard and Mahendra's. Not necessarily in the same order.

D likes yellow colour and purchases test series of Mahendra's. C neither likes green nor white colour. The one who purchases Testbook likes blue colour. Neither C nor E likes Testbook. F likes black colour. B purchases Gradeup’s series. B does not like white colour. E does not purchase a test series of either Adda247 or practice mock. The one who likes black colour does not purchase Practice mock series. The one who purchases Olive board test series likes white.