Questions correctly answered by Anita are as follows: Arithmetic −70% of 10=7 Algebra −40% of 30=12 Geometry −60% of 30=18 ∴ Total questions correctly answered =7+12+18=37 Anita had to attempt 60% of 70 questions i.e., 42 questions correctly to pass the test. ∴ Number of more questions required to be answered =42−37=5
