Sima gets 9 out of 25 questions wrong in her maths test. What fraction of the questions does Sima answer correctly? (2 marks)

Q. Mohit correctly answered $90\%$ of the questions in a Maths test contained exactly $40$ questions. How many of the questions did he answer incorrectly?

Q. In a test containing of $80$ questions carrying one mark each, Arpita answered $65$ $\%$ of the first $40$ questions correctly. What percent of the other $40$ questions does she need to answer correctly for her grade in the entire exam to be $75$ $\%$?

Q. A student gets 3 marks for answering a question correctly and loses 1 mark for answering it wrong. Suppose if he answers 5 questions correctly and 2 questions wrong, then what is his score?

Q. A student get $3$ marks for answering a question correctly and $1$ mark for answering it wrong. Suppose if he answers $5$ questions correctly and $2$ answer of questions wrong, then what marks is scored.

Q. Alex answered $35$ out of $50$ questions correctly in a math quiz. If he has answered $70$ questions correctly in the chemistry quiz, with the same accuracy as that of the math quiz, find the total number of questions in the chemistry quiz.