In a test, each student gets +4 marks for every correct answer and (−2) marks for every incorrect answer. Ram attempted all the questions and scored 30 marks. Suppose that he answered 10 questions correctly.
How many questions did he answer incorrectly?
How many questions were there in the test?
Answers
Answered by
33
Answer:
Step-by-step explanation:
1) So if he answered 10 correctly, he gets 40 marks right, so if he scored 30 then he must have got 5 wrong as 5 times 2 is ten, we did this so as to get 40-10=30.
2) 15 as he got 10 correct and 5 wrong, this is also backed by the fact that he attempted all the questions.
Answered by
6
Answer:
He had 15 questions in the test. He got 10 correct and 5 wrong.
Step-by-step explanation:
1) So if he answered 10 correctly, he gets 40 marks right, so if he scored 30 then he must have got 5 wrong as 5 times 2 is ten, we did this so as to get 40-10=30.
2) 15 as he got 10 correct and 5 wrong, this is also backed by the fact that he attempted all the questions.
Similar questions