The number of tourists visiting a historical place in a week is shown in the following table :

Answer the following related questions.
On which day is the number of tourists maximum?

On which day is the number of tourists minimum?

On which day 60 tourists visit?

What is the difference between the number of tourists visiting on Friday and Monday?

The sum of the number of tourists visiting on Sunday and Friday is

The difference between the maximum and minimum number of tourists is

A batsman scored the following number of runs in six innings:
35, 30, 45, 65, 39, 20
The mean runs scored by him in an inning is

The mean of the numbers 10,20, 30 and 40 is

The range of the weights (in kg) of a students of a class given below is:
49, 60, 47, 50, 47, 59, 58, 45, 53

The marks of 11 students of a class are as given below:
78, 11, 99, 63, 94, 6, 78, 36, 30, 55, 22
The range of marks is