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 percentage of numbers from 1 to 70 have squares that end in the digit 1?
A. 1
B. 14
C. 20
D. 21