A certain copy machine produces 13 copies in every 10 seconds.  If the machine operates without interruption, how many copies will it produce in an hour ?

A labourer is paid per hour for an 8-hour day and times that rate for each hour in excess of 8 hours in a single day.  If the labourer received for a single day's work, how long did he work on that day ?

Machine A produces 100 parts twice as fast as machine B does.  Machine B produces 100 parts in 40 minutes.  If each machine produces parts at a constant rate, how many parts does machine A produce in 6 minutes ?

Savita left her home at 11 a.m., travelling along Route 1 at 30 kmph.  At 1 p.m., her brother Rohan left home and started after her on the same road at 45 kmph.  At what time did Rohan catch up to Savita ?

One printing press can print a daily newspaper in 12 hours, while another press can print it in 18 hours.  How long will the job take if both presses work simultaneously ?

A is twice as good as a workman B, And together, they finish a piece of work in 14 days.  In how many days, can it be done by each separately ?

The water from one outlet, flowing at a constant rate, can fill a swimming pool in 9 hours.  The water from a second outlet, flowing at a constant rate, can fill the same pool in 5 hours.  If both outlets are used at the same time, approximately what is the number of hours required to fill the pool ?

Praveen is standing 180 metres due north of point P.  Ravi is standing 240 metres due west of point P.  What is the shortest distance between Ravi and Praveen ?

If 3 miles are equivalent to 4.83 kilometers, then 11.27 kilometers are equivalent to how many miles ?

How many minutes will it take to completely fill a water tank with a capacity of 3650 cubic metres if the water is being pumped into the tank at the rate of 800 cubic metres per minute and is being drained out of the tank at the rate of 300 cubic metres per minute ?