Hello,
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It depends on the country you want study, course you wanted to choose and the percentage you get in your entrance exams.
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Mostly your Admission in abroad countries will be based on your entrance exams you will be writing i.e., TOEFL/IELTS.
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And once you get selected, your graduation marks will  be considered countries like Australia, Canada accepts the students who secure 50% where as countries like UK only accepts the students who secure minimum of 60%.
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Hope you got a clear information