1. A diver goes to 100 feet for 13 minutes. She stays
on the surface for 2 hours and 20 minutes. Then she does a dive to 70 feet
for 18 minutes. Then she stays out for 3 hours. How long can she
dive to 50 feet now?
answer
2. A diver dives on a shipwreck at 84 feet for 18 minutes.
She takes a lunch break for an hour and 30 minutes. Then she does a dive
to 52 feet for 15 minutes. After a 2 hour surface interval, how long can
she dive to 44 feet?
answer
3. A diver goes to 75 feet for 31 minutes.
After a surface interval of 1:45 minutes, she does another dive to 52 feet for
17 minutes. She takes a long 2 hour lunch and then dives to 44 feet for 26
minutes. What is her pressure group?
answer
4. After a dive to 52 feet for 42 minutes, a diver rests on
the surface for two hours and 10 minutes. Then she does another dive to 48
feet for 27 minutes. After a nap and dinner, she decides to do a night
dive. It has been 4 hours since her last dive. The night dive is to
42 feet for 41 minutes. What is her pressure group?
answer