141 .
Tap A can fill a tank in 20 hours, B in 25 hours but tap C can empty a full tank in 30 hours. Starting with A, followed by B and C each tap opens alternatively for one hour period till the tank gets filled up completely. In how many hour the tank will be filled up completely?
A.51*11/15
B. 52*2/3
C. 24*4/11
D.52*2/3
142 .
Vehicle Fare for distance upto
2 km 4 km 7 km 10 km 15 km 20 km
Type A 5.00 9.00 13.50 17.25 22.25 26.00
Type B 7.50 14.50 24.25 33.25 45.75 55.75
Type C 10.00 19.00 31.00 41.50 56.50 69.00
Note : Fare per km for intermittent distance is the same.

Shiv Kumar has to travel a distance of 15 kms in all. He decides to travel equal distance by each of the three types of vehicles. How much money is to be spent as fare?
A.51.75
B. 47.50
C. 47.25
D.51.25
143 .
Vehicle Fare for distance upto
2 km 4 km 7 km 10 km 15 km 20 km
Type A 5.00 9.00 13.50 17.25 22.25 26.00
Type B 7.50 14.50 24.25 33.25 45.75 55.75
Type C 10.00 19.00 31.00 41.50 56.50 69.00
Note : Fare per km for intermittent distance is the same.

Ajit Singh wants to travel a distance of 15 kms. He starts his journey by Type A vehicle. After travelling 6 kms, he changes the vehicle to Type B for the remaining distance. How much money will he be spending in all?
A.42.25
B. 36.75
C. 40.25
D.42.75
144 .
Vehicle Fare for distance upto
2 km 4 km 7 km 10 km 15 km 20 km
Type A 5.00 9.00 13.50 17.25 22.25 26.00
Type B 7.50 14.50 24.25 33.25 45.75 55.75
Type C 10.00 19.00 31.00 41.50 56.50 69.00
Note : Fare per km for intermittent distance is the same.

Mr X wants to travel a distance of 8 kms by Type A vehicle. How much more money will be required to be spent if he decides to travel by Type B vehicle instead of Type A?
A.16
B. 12.50
C. 14
D.13.50
145 .
Vehicle Fare for distance upto
2 km 4 km 7 km 10 km 15 km 20 km
Type A 5.00 9.00 13.50 17.25 22.25 26.00
Type B 7.50 14.50 24.25 33.25 45.75 55.75
Type C 10.00 19.00 31.00 41.50 56.50 69.00
Note : Fare per km for intermittent distance is the same.

A.50
B. 55
C. 50.50
D.None of these