GMAT Problem Solving
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Source: GWD
Level: 0
According to a certain estimate, the depth N(t), in centimeters, of the water in a certain tank at t hours past 2:00 in the morning is given by 
for 0 ≤ t ≤ 10. According to this estimate, at what time in the morning does the depth of the water in the tank reach its maximum?
- A 0.229166667
- B 0.291666667
- C 0.3125
- D 0.333333333
- E 0.375