Arithmetic

Central Tendency

Easy

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 ?

✅ Correct Option: 3

Number of students $= \frac{\text{total marks}}{\text{average}} = \frac{3575}{55} = 65$ .

2026: 31 May Shift 1

Match the LIST-I with LIST-II

LIST-I (Measure of Dispersion)	LIST-II (Property of the Measure of Dispersion)
A. Range	I. Based on absolute deviation from mean or median
B. Variance	II. Based on squared deviation from mean
C. Standard Deviation	III. Square of standard deviation
D. Mean Deviation	IV. Difference between largest and smallest values

Choose the correct answer from the options given below:

2022: 24 Aug Shift 1

If the average of 3, 8, 9 and x is 8. Then, what is the value of x ?

2026: 6 June Shift 1

If the median of x/5, x/4, x/2, x and x/3, where x > 0, is 8, find the value of x.

2026: 19 May Shift 1

The median of class frequency distribution is:

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

2023: 28 May Shift 1

The average of first six multiples of 11 is :

2025: 3 June Shift 1

In a class, the number of students who scored 61 or more marks is 30 and there are almost 39 students who have scored below 61 marks.

If the average marks of the class is 48, then determine that what is the largest possible average marks of students who have scored below 61 marks?

Solution