Q11. 
Ram covers a part of the journey at 20 kmph and the balance at 70 kmph taking total of 8 hours to cover the distance of 400 km. How many hours has he been driving at 20 kmph? 
A.  2 hours 

B.  3 hours 20 minutes 

C.  4 hours 40 minutes 

D.  3 hours 12 minutes 
Q12. 
I travel the first part of my journey at 40 kmph and the second part at 60 kmph and cover the total distance of 240 km to my destination in 5 hours. How long did the first part of my journey last? 
A.  4 hours 

B.  2 hours 

C.  3 hours 

D.  2 hours 24 minutes 
Common Information
Two men are walking towards each other alongside a railway track. A freight train overtakes one of them in 20 seconds and exactly 10 minutes later meets the other man coming from the opposite direction. The train passes this man is 18 seconds. Assume the velocities are constant throughout.
Q13. 
Common Information Question: 1/2 How long after the train has passed the second man will the two men meet? 
A.  89.7 minutes 

B.  90 minutes 

C.  90.3 seconds 

D.  91 seconds 
Q15. 
$P$ and $Q$ walk from $A$ to $B$, a distance of 27 km at 5 km/hr and 7 km/hr respectively. $Q$ reaches $B$ and immediately turns back meeting $P$ at $T$. What is the distance from $A$ to $T$? 
A.  25 km 

B.  22.5 km 

C.  24 km 

D.  20 km 