If 29 workers can complete a specific construction project in 23 days, exactly how many days will it take for 23 workers to complete the exact same project (assuming all workers operate at the same rate)?

A motorboat travels downstream at a speed of 27 km/hr and upstream at a speed of 11 km/hr. What is the precise speed of the motorboat in completely still water?

Two trains, A and B, are 200 meters and 150 meters long respectively. They are running on parallel tracks in opposite directions with speeds of 72 km/hr and 54 km/hr. In exactly how many seconds will they completely cross each other?

The speed of a boat in still water is 11 km/hr and the speed of the river current is 2 km/hr. How much distance will the boat cover traveling downstream in exactly 5 hours?

A train traveling at a constant speed of 90 km/hr completely crosses a stationary pole in 20 seconds. What is the precise length of the train in meters?

A train traveling at a constant speed of 108 km/hr completely crosses a stationary pole in 19 seconds. What is the precise length of the train in meters?

A train traveling at a constant speed of 54 km/hr completely crosses a stationary pole in 13 seconds. What is the precise length of the train in meters?