The following figure represents time vs. learning curves of two students, Q and R for learning a Mathematics lesson : Which one of the following inferences can be drawn from the graph ?

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Q: 146 (IAS/2000)
The following figure represents time vs. learning curves of two students, Q and R for learning a Mathematics lesson :
Which one of the following inferences can be drawn from the graph ?

question_subject: 

Logic/Reasoning

question_exam: 

IAS

stats: 

0,7,7,7,2,3,2

keywords: 

{'graph': [0, 1, 1, 0], 'curves': [0, 1, 0, 0], 'mathematics lesson': [0, 1, 0, 0], 'mathematics': [0, 1, 0, 0], 'inferences': [0, 1, 0, 0], 'following figure': [0, 3, 2, 4], 'students': [0, 1, 1, 1], 'time': [2, 6, 15, 23], 'lesson': [0, 1, 0, 0]}

The correct answer is option 1 which suggests that R started slowly in the beginning but got ahead of Q to complete learning the lesson. This can be inferred from the graph because initially, R`s learning curve is a bit slow, but eventually, it crosses Q`s curve and reaches the end before Q does. This indicates that R completes the lesson before Q.

Option 2 is incorrect as it suggests that Q finished learning the lesson earlier than R, which contradicts the graph.

Option 3 is inaccurate because R was not always faster than Q. At the beginning, Q was faster than R, as evidenced by Q`s curve being above R`s.

Option 4 is also incorrect because, even though Q starts faster, R eventually takes over, showing that Q was not always faster in learning Mathematics.

Overall, the learning curves indicate the speed and continuity of learning and, in this case, show that R finishes learning the lesson first, despite a slow start.