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10 questions
9 hours + 8 hours =
15 hours
16 hours
17 hours
18 hours
22 minutes + 30 minutes =
52 minutes
42 minutes
50 minutes
32 minutes
9 seconds + 17 seconds + 24 seconds =
26 seconds
41 seconds
50 seconds
46 seconds
2 hours 35 minutes + 4 hours 10 minutes =
5 hours 35 minutes
6 hours 35 minutes
5 hours 45 minutes
6 hours 45 minutes
3 hours 15 minutes + 2 hours 55 minutes =
5 hours 15 minutes
6 hours 10 minutes
6 hours 15 minutes
5 hours 10 minutes
86 hours - 25 hours =
66 hours
65 hours
61 hours
59 hours
91 minutes - 34 minutes =
67 minutes
63 minutes
64 minutes
57 minutes
75 seconds - 10 seconds - 17 seconds =
48 seconds
58 seconds
55 seconds
65 seconds
4 hours 20 minutes - 15 minutes - 1 hour 5 minutes =
3 hours 5 minutes
4 hours 5 minutes
3 hours
4 hours
58 minutes 16 seconds - 17 minutes 12 seconds - 30 seconds =
41 minutes 4 seconds
40 minutes 34 seconds
41 minutes 36 seconds
40 minutes 36 seconds
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