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Ques:- Navin walked 20 metres towards the East took a left turn and walked 10 metres and again took a left turn and walked 20metres. How far is he from his starting position?
A. 10 metres
B. 50 metres
C. 40 metres
D. 30 metres
E. None of these
Ques:- The number of prime factors in the expression (6)10 x (7)17 x (11)27 is
A. 44
B. 54
C. 64
D. 71