Answer:
B) 30min
Step-by-step explanation:
Start with 2 and continue to multiply that by 2 until you get 128
2 x 2 = 4
4 x 2 = 8
8 x 2 = 16
16 x 2 = 32
32 x 2 = 64
64 x 2 = 128
Then start with what you think could be the right answer based on how many intervals there are.
You know it can't be 15 because there definitely isn't enough and you know its not 1hr because theres way more than 3.
So you're left with either B) 30min or C) 45min
It has to be B) 30min because there are 6 intervals and 30min goes into an hour twice, meaning that if every 2 intervals is an hour there are 3 hours.
c
x=5/12
