Additional information:
Dina's marginal gain for working on problems is 100 problems during the first hour, and 75 problems for the rest of the hours. Gin's gains for reading one hour is equivalent to 87.5 problems.
Answer:
B) 1 hour working on problems, 3 hours reading
Explanation:
Dina has to make her decision based on her marginal gain.
marginal gain for working on problems marginal gains for reading
100 for the first hour 87.5 for the first hour
75 for the second hour 87.5 for the second hour
75 for the third hour 87.5 for the third hour
75 for the fourth hour 87.5 for the fourth hour
Dina's marginal gain for working on problems is larger for the first hour only, then the marginal gain for reading is larger. Therefore Gina should only work on problems for one hour and read for the other three.
The amount of time which she should have spent working on problems, and the time she should have spent reading is:
Based on the complete text, we can see that there is there is the narration about the amount of time spent reading and how it would increase a student's score.
With this in mind, we can see that if the student uses 4 hours of her study time to get the best possible score, she would have to dedicate 1 hour to problems and then 2 hours to reading.
Therefore, the correct answer is option B
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