Q11. 
The jogging track in a sports complex is 726 m in circumference. Suresh and his wife start from the same point and walk in opposite direction at 4.5 km/hr and 3.75 km/hr respectively. They will meet for the first time in: 
A.  5.5 minutes 

B.  6 minutes 

C.  4.9 minutes 

D.  5.28 minutes 
Q12. 
A train starts from Delhi at 6:00 am and reaches Ambala cantt. at 10am. The other train starts from Ambala cantt. at 8am and reached Delhi at 11:30 am, If the distance between Delhi and Ambala cantt is 200 km, then at what time did the two trains meet each other? 
A.  8:46 am 

B.  8:30 am 

C.  8:56 am 

D.  8:50 am 
Q13. 
Two stations $A$ and $B$ are 110 km apart on a straight line. One train starts from $A$ at 7 am and travel towards $B$ at 20 km/hr speed. Another train starts from $B$ at 8 am and travel towards $A$ at 25 km/hr speed. At what time will they meet? 
A.  9 am 

B.  10 am 

C.  11 am 

D.  None of these 
Q14. 
A man can row 4.5 km/hr in still water and he finds that it takes him twice as long to row up as to row down the river. Find the rate of the stream. 
A.  2 km/hr 

B.  2.5 km/hr 

C.  1.5 km/hr 

D.  1.75 km/hr 
Q15. 
The circumference of the front wheel of a cart is 40 ft long and that of the back wheel is 48 ft long. What is the distance travelled by the cart, when the front wheel has done five more revolutions than the rear wheel? 
A.  950 ft 

B.  1450 ft 

C.  1200 ft 

D.  800 ft 