Answer:
C
Step-by-step explanation:
Total Work hours = 3 1/2 hours
One routine physical routine requires: 1/3 hours.
Number of routines can be completed = Total work hours / Time required for one physical routine
= 
= 10.5 routines.
In this case, we are unable to complete half a routine (0.5), so we will choose the highest possible whole number, in this case, its 10 routines.
I think the answer is c or d if im wrong sorry hope this helped tho :p
The pattern is +5 +5 -1 +6 So the answer should be (B) 30,29,35
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