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Problem 16 (1999 AMC 8)

AMC 8Easy

From module Arithmetic and Number Theory Basics

Problem

Tori's mathematics test had 7575 problems: 1010 arithmetic, 3030 algebra, and 3535 geometry problems. Although she answered 70%70\% of the arithmetic, 40%40\% of the algebra, and 60%60\% of the geometry problems correctly, she did not pass the test because she got less than 60%60\% of the problems right. How many more problems would she have needed to answer correctly to earn a 60%60\% passing grade?

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