"Shobha’s Mathematics Test had 75 problems i.e, 10 arithmetic, 30 algebra and 35 geometry problems.
Channel: Doubtnut
Date: 2020-04-05

"Shobha’s Mathematics Test had 75 problems i.e, 10 arithmetic, 30 algebra and 35 geometry problems. Although she answered 70% of the arithmetic 40% of the algebra and 60% of the geometry problems correctly she did not pass the test because she got less than 60% of the problems right. How many more questions she would have needed to answer correctly to earn a 60% passing grade?"