Hello Chandru!
The total marks for Preparatory 1 Social Science is 80 marks. The marks allotted for the model/question papers may vary every year, but as a general guideline, working on the model papers will give us coverage for the majority of the syllabus for most of the questions.
Link: https://school.careers360.com/boards/kseeb/karnataka-sslc-exam-pattern
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