Mathematics
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.
Related Questions
If the mean of 11, 8, 13, 10, x and 9 is 9.5, find the value of x.
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 of five numbers is 18. On excluding one number, the mean becomes 16. Find the excluded number.
The ages of 40 students of a group are given below :
Age (in years) Number of students 12 6 13 8 14 5 15 7 16 9 17 5 Find the mean age of the group.