Question

In a class of 51 students, the difference between the highest marks and the least marks is 70. If the average score is

calculated without considering the student who got the highest marks then the average score decreases by 1%. If the

average score is calculated without considering the student who got the least marks then the average score increases

by 1 1/3%. What is the original average score of the class?​

Answer 1

Answer:

Let the average mark be x.

Total marks = 51x

50 * 0.99x = 51x - max

50 * 1.0133x = 51x - min

Subtracting last two,

50* 0.0233x = max - min = 70,

x = 60

Answer 2

Answer:

$\huge\underline\bold\red{♡AnsWeR♡}$

$x = 60$