A project can have several, parallel, near critical paths; and some or all of the tasks could have 'free float' and/or 'total float'. An additional parallel path through the network with the total durations shorter than the critical path is called a sub-critical or non-critical path.
Indeed, the average person canât hold their breath for more than 30 seconds or so â and even someone in excellent health is gasping by two minutes. Sietas pictured at the start (left) and finish (right) of the new breath-holding record of 18 minutes and 16 seconds in a water tank. Most Japanese pearl divers, who dive deep without oxygen for their treasure, canât manage more than seven minutes.
The current record for holding breath underwater is 8 minutes, 58 seconds. The average person can hold it a lot less. [ Source: http://www.chacha.com/question/how-long-can-an-average-person-hold-their-breath ].More Answers to  How long can an average person hold their breath .ttp://wiki.answers.com/Q/How_long_can_the_average_person_hold_their_breath_under_water. The average person can hold there breath for about 30 to 40 seconds, not that long uh.