Question
How many students study in standard
IV? Study the following information carefully and answer the given questions: A, B, C, D, E and F are 6 students studying in ABC School in different standards- II, IV, and VI with atleast one in each. They like different flowers namely- Lily, Lotus, Jasmine, Rose, Sandal and Daisy. Each of them has a favourite car- Honda, BMW, AUDI, Ferrari, Maruti and Ford not necessarily in the same order. They also like different colours- Red, Green, White, Black, Yellow and Grey. i) Both the students who like Maruti and White colour studies in IV standard. ii) The only student studying in VI standard likes Green color and Honda is his favourite car, but he does not like Lotus. iii) The student whose favourite car is Ferrari likes Rose. iv) A’s favourite car is Ford and he studies in IV standard. v) B studies in II standard. vi) C likes neither Maruti nor Jasmine. vii) Student whose favourite car is Maruti likes Yellow color. viii) E does not like Lotus. ix) D’s Favourite car is Honda. x) Student who likes AUDI does not like Red color. xi) F likes neither Grey nor Yellow color. xii) Neither B nor F likes BMW. xiii) The one who likes Grey color, one who likes Jasmine and the one who likes Sandal studies in same standard. xiv) There are atleast 2 students in II standard and the one who likes BMW Studies in II standard. xv) The one whose favourite car is AUDI does not study in same standard with the student whose favourite car is Ford.Solution
Both the students who like Maruti and White colour studies in IV standard .Only D studies in VI standard . He likes Green colour and Honda is his favourite car. Student whose favourite car is Maruti likes Yellow Colour. The student who likes Grey colour, One who likes Jasmine and the one who likes BMW studies in the same standard. Student whose favourite car is BMW studies in II standard. Student whose favourite car is AUDI does not study in same standard with the student whose favourite car is Ford.(i.e. Student whose favourite car is AUDI studies in II standard as Student having Ford studies in IV standard) B studies in II standard but he does not likes BMW. One who likes AUDI does not like Red colour. F neither likes Grey nor yellow colour. If we combine the above statements, we will get 2 possible cases: Case-1 
The student whose favourite car is Ferrari likes Rose. But, while checking Case1 there is no place together for Ferrari and Rose(as Student whose favourite car is Ferrari likes Rose) . So, the Case 1 cannot be possible. Now consider Case2:  F does not like Grey and Yellow colour. Also, he does not like BMW. So, there is only 1 possible place for F. B studies in II standard but BMW is not his favourite car C does not like Maruti. E and D does not like Lotus 
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