Question

2 marks for the correct ans and(-1/2)for the wrong ans gave .ram 40 marks.he got 56 if the above are 3and -1 respectively .find the total number of questions​

Answer 1

Answer:

40

Step-by-step explanation:

Let no. of correct ans be x and wrong ans be y

Total no. of que = x+y

According to given information,

2x - y/2 = 40 => 4x-y=80...(1)

3x-y=56...(2)

Subtraction of (2) from (1) gives

x=24 => y = 16

Total no. of que = 24+16 =40