Q)
(chatquestion)...2. Sam used to walk to school every morning, and it takes him 20 min.
Once on his way, he realized that he had forgotten his homework
notebook at home. He knew that if he continued walking to school at the
same speed, he would be there 8 min before the bell, so he went back
home for the notebook and arrived the school 10 min after the bell. If he
had walked all the way with his usual speed, what fraction of the way
to school had he covered till the moment he turned back?
(a) 8/20
(c) 10/20
(b) 9/20
(d) 12/20
...
