GRE Exam Numerical Ability Averages

In a city, the total rainfall in a certain year was 39 inches. From May to November of that year, the average rainfall was approximately 4.1 inches per month. What was the average rainfall, in inches, for the remaining months of the year? A) 1.84 B) 1.98 C) 2.06 D) 2.21

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GRE Other Question
Reservoir A contains 450 million gallons of water more than does Reservoir B. If 100 million gallons of water were to be drained from Reservoir A into Reservoir B, then Reservoir A would contain twice as much water as would Reservoir B. How many million gallons of water does Reservoir A currently contain? In a certain game, players have three chances during each turn to earn points. Each consecutive win awards more points than the previous win. The second win awards 75 points more than the first, and the third win awards twice as many points as the second win. Tesia won the maximum number of points during her turn and received a total of 460 points. How many points are awarded for the first win?