


29.
The speed of a car increases by 2 kms after every one hour. If the distance travelled in the first hour was 35 kms, what was the total distance travelled in 12 hours? [Bank P.O 2003]
30.
A train covers a distance of 10 km in 12 minutes. If its speed is decreased by 5 km/hr, the time taken by it to cover the same distance will be: [S.S.C. 1999]
31.
Anna left for city A from city B at 5.20 a.m. She travelled at the speed of 80 km/hr for 2 hours 15 minutes. After that the speed was reduced to 60 km/hr. If the distance between two cities is 350 kms, at what time did Anna reach city A? [Bank P.O. 1999]
Answer & Solution
Answer: d) None of these
Solution: Distance covered in 2 hours 15 minutes i.e., 2 1/4 hrs = [80 * 9/4)] hrs = 180 hrs. Time taken to cover remaining distance = [(350  180) / 60] hrs = 17/6 hrs. = 2 5/6 hrs = 2 hrs 50 min. Total time taken = (2 hrs 15 min + 2 hrs 50 min) = 5 hrs 5 min. So, Anna reached city A at 10.25 a.m. 32.
An aeroplane covers a certain distance at a speed of 240 kmph in 5 hrs. To cover the same distance in 1 2/3 hours, it must travel at a speed of : [S.S.C 2000]
33.
A salesman travels a distance of 50 km in 2 hours and 30 minutes. How much faster, in kilometers per hour, on an average, must he travel to make such a trip in 5/6 hour less time? [ Hotel Management 2002]
34.
A person has to cover a distance of 6 km in 45 minutes. If he covers onehalf of the distance in twothirds of the total time, to cover the remaining distance in the remaining time, his speed (in km/hr) must be : [S.S.C 1999]
35.
A man performs 3/5 of the total journey by rail, 17/20 by bus and the remaining 6.5 km on foot. His total journey is :
