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:- What is the minimum number of four digits formed by using the digit 2, 3, 0, 7?
A. 2047
B. 2247
C. 2407
D. 2470