Home
Class 14
MATHS
The mean marks obtained by 300 students ...

The mean marks obtained by 300 students in a subject are 60. The mean of top 100 students was found to be 80 and the mean of last 100 students was found to be 50. The mean marks of the remaining 100 students are

A

70

B

65

C

60

D

50

Text Solution

Verified by Experts

Promotional Banner

Similar Questions

Explore conceptually related problems

The mean marks got by 300 students in the subject of statistics was 45. The mean of the top 100 of them was found to be 70 and the mean of the last 100 was known to be 20, then the mean of the remaining 100 students is

Marks obtained by 7 students in a subject are 30, 55, 75, 90, 50, 60, 39. The number of students securing marks less than the mean marks is

The table shows the marks obtained by 25 students in a class test. Find the mean of the marks obtained

The following table represent marks obtained by 100 students in a test. Find mean marks of the students.

The average marks of 39 students of a class is 50. The marks obtained by 40th student are 39 more than the average marks of all the 40 student are 39 more than the average marks of all the 40 students. Find the mean marks of all the 40 students.