Question

In a certain examination the average marks of an examinee is 64per paper. if he had obtained 18more marks for his maths paper and 4more marks for his English paper his average per paper would have been 66 how many paper were there in the examination?​

Answer 1

Answer:

11

Step-by-step explanation:

Let the number of papers = x.

According to the question

64x + 18 + 4 = 66x

2x = 22

X = (22/2) = 11