6 HOURS 6 SENTENCES

The hour hand of a clock is 6 cm long. The magnitude of the displacement of the tip of hour hand between 12:00 pm to 6:00 pm is :

A car travels 288 km in 4 hours and a train travels 540 km in 6 hours. The ratio of their speeds is

A tap can fill a tank in 6 hours. The part of the tank filled in 1 hour is ………..

A boat goes 40 km upstream in 8 hours and 36 km downstream in 6 hours. The speed of the boat in still water is

Tap A can fill a tank in 10 hours and tap B can fill same tank in 12 hours .Tap C can empty the same full tank in 6 hours .If all the taps are opened together,then what what portion of the tank will be filled after 6 hours ?