Question

in an examination a student attempt 20 questions correctly and Secure 60 marks if there are two types of question( 2 marks and 4 marks question)then how many questions of 2 marks did he attempt correctly?​

Answer 1

Answer:

in a case: he attempts 10 2m and 4m questions correctly to secure 10×2+10×4=60

Explanation:

there can be another case but this might be more simpler.

ans-10 ques. of 2 marks he had attempted correctly.

Answer 2

Answer:

Attempt =20

Marks obtained =60

Question type :-

4 marks and 2 marks

Questions of 4 marks=60/4=15

Remaining =20-15 = 5

So, there are 5 questions that contain 2 marks