Hey, even though a student has given his improvement exam in class 12th, he is still eligible to give the SAT exam. There are no strict eligibility criteria for the test and there is no age limit to the exam but since it is a test to get into colleges, mostly 10th and 12th students give the exam. Since the improvement exam marks will be printed and used in your mark sheet, there is no limitation even though you give the improvement or not. I hope this helped.

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