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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?

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?

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?

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?

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.