In an examination a pupil's average marks were 63 per paper.
In an examination a pupil's average marks were 63 per paper. If he had obtained 20 more marks for his Geography paper and 2 more marks for his History paper, his average per paper would have been 64. How many papers were there in the examination?
Answer/Solution
22
Steps/Work
Let the number of papers be x. Then,
63x + 20 + 2 = 64x
= x = 22
ANSWER:D
63x + 20 + 2 = 64x
= x = 22
ANSWER:D