From a telephone directory, 200 telephone numbers are chosen and frequency distribution of their right most digits (For example in the number 28563, the rightmost digit is 3) is given as follows :

A next number is selected. What will be the probability that the rightmost digit in the number is 6.

On one page of a telephone directory, there were 200 telephone numbers. The frequency distribution of their unit place digit (for example, in the number 25828573, the unit place digit is 3) is given in Table 15.7 : Without looking at the page, the pencil is placed on one of these numbers, i.e., the number is chosen at random. What is the probability that the digit in its unit place is 6?

What will be the unit digit of the squares of the following numbers: 2651

What will be the unit digit of the squares of the following numbers: 1324

What will be the unit digit of the squares of the following numbers : 272

What will be the unit digit of the squares of the following numbers: 49

What will be the unit digit of the squares of the following numbers: 12836

What will be the unit digit of the squares of the following numbers: 36257

What will be the unit digit of the squares of the following numbers : 799

What will be the unit digit of the squares of the following numbers: 52740

What will be the unit digit of the squares of the following numbers: 34393