passing marks

Algebra Level 2

Janmeet's mathematics test had 85 problems, which contains 20 algebra, 30 statistics and 35 geometry problems. He answered 70% of algebra, 40% of statistics and 60% of geometry problems correctly. He did not pass test because he got less than 60% of problems correct. How many more problems he would have need to answer correctly to earn 60% passing grade?

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