Mathematics
If the mean of 11, 8, 13, 10, x and 9 is 9.5, find the value of x.
Related Questions
The daily minimum temperature recorded (in degrees F) at a place during a week was as under :
Monday Tuesday Wednesday Thursday Friday Saturday Sunday 35.5 30.8 28.3 31.1 23.8 29.9 32.7 Find the mean temperature of the week.
The marks obtained by 10 students in a class-test were as follows :
38, 41, 36, 31, 45, 38, 27, 32, 29, 39
Find :
(i) the mean of their marks;
(ii) the mean of their marks, when the marks of each student are increased by 2;
(iii) the mean of their marks, when 1 mark is deducted from the marks of each student;
(iv) the mean of their marks, when the marks of each student are halved.
Find the mean of 25 numbers, it being given that the mean of 15 of them is 18 and the mean of remaining ones is 13.
The mean weight of 60 students of a class is 52.75 kg. If the mean weight of 25 of them is 51 kg, find the mean weight of the remaining students.