Answer :
Final answer:
The maximum allowed time for a multi-level dive to 35 meters, 24 meters, and 15 meters is around 128 minutes, including a 3-minute safety stop.
Explanation:
In the context of diving, the time you can spend at each depth, otherwise known as the no decompression limit, varies and is based on the depth's pressure. The no decompression limits for 35 meters (115 feet), 24 meters (80 feet), and 15 meters (50 feet) as per the PADI Recreational Dive Planner are approximately 20, 25, and 80 minutes, respectively. Additionally, a key aspect of safety in diving is to do a 3-minute safety stop at 5 meters (15 feet) at the end of every dive to avoid decompression sickness. So, the maximum time allowed for this multilevel dive will be the sum of these times, equating to 20 minutes (at 35m/115ft) + 25 minutes (at 24m/80ft) + 80 minutes (at 15m/50ft) + 3 minutes (safety stop) = 128 minutes.
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