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 General Aptitude
 Time and Distance
6.
A man walks at the speed of 4 km/hr and runs at the speed of 8 km/hr. How much time will the man require to cover a distance of 24 kms, if he completes half of his journey walking and half of his journey running?
 A.12 hours
 C.4 1/2 hours
 B.5 hours
 D.3 hours
 Answer & Explanation
 Report
Answer : [C]
Explanation :
Explanation :
Required time = Time taken for walking + Time taken for running  


7.
Two trains are traveling in the same direction with speed of 30 km/hr and 58 km/hr respectively. A man in the slower train passes the faster train in 18 seconds. Find the length of the faster train.
 A.120 km
 C.100 m
 B.140 km
 D.70 km
 Answer & Explanation
 Report
Answer : [B]
Explanation :
Explanation :
Speed of the slower train = 30 km/hr  
Speed of the faster train = 58 km/hr  
As the train we are traveling in the same direction, relative speed = 58  30 = 28 km/hr  




Length of the faster train = 140 m  
8.
A car after covering half of a distance of 100 km develops some engine trouble and later travels at half its original speed. As a result it arrives 2 hours later than its normal time. What was the original speed of the car?
 A.40 km/hr
 C.30 km/hr
 B.25 km/hr
 D.35 km/hr
 Answer & Explanation
 Report
Answer : [B]
Explanation :
Explanation :
Let the original speed of car be x km/hr  


Now, the car travels 50 km at x km/hr and another 50 km at x/2 km/hr  


9.
In a 1000 m race, A can beat B by 20 m, While in a 500 m race B can beat C by 15 m. By what distance will A beat C in a 100 m race?
 A.4.92 m
 C.4 m
 B.4.94 m
 D.4.90 m
 Answer & Explanation
 Report
Answer : [B]
Explanation :
Explanation :
In a 1000 m race, when A runs 1000 m B runs 980 m.  


In a 500 m race when B runs 500 m, C runs 485 m  


When A runs 100 m, B runs 98 m and C runs 95.06 m  


10.
A plane takes 4 hours to go 3600 km with the wind. The return flight takes 6 hours. Assuming that the wind speed and direction have not changed, calculate the speed of the plane.
 A.700 km/hr
 C.750 km/hr
 B.600 km/hr
 D.150 km/hr
 Answer & Explanation
 Report
Answer : [C]
Explanation :
Explanation :
Let x km/hr be the speed of the plane and y km/hr be the speed of the wind.  
Speed during onward flight = x + y  
Speed during onward return flight = x – y  







