The median of class frequency distribution is:

Class:	0 - 25	25 - 50	50 - 75	75 - 100	Total
Frequency:	25	32	15	16	88

The marks out of 50 obtained by 100 students in a test are given below as:

Find the value of the (3 mode - 2 median).

The average marks of the students of a class are 55. What is the number of students in the class if the sum total of marks of all the students in the class is 3575 ?

Read the information given in the table carefully and answer the question that follows:

NUMBER OF CALCULATORS SOLD BY SHOPS P, Q, R, & S IN JUNE, JULY AND AUGUST

(A) The difference between the total number of calculators sold by shops P and Q together in August and the number of calculators sold by shops R and S together in June is 42

(B) The average number of calculators sold by Shop S in the three months is 92

(C) The respective ratio between the total number of calculators sold by shops P and Q in July and the total number of calculators sold by shop Q in August is 45 : 31

Choose the correct answer from the options given below:

The median of the observations 1, 13, 7, 19, 18, 15, 32, 28, 23, 24, 31 is:

The average of marks of 15 papers is 45. The average of marks of the first 8 papers is 48 and that of the last 8 papers is 40. The marks of the eight paper will be:

The median of the following frequency distribution is 52. If the total frequency is 50, the values of x and y are: