11th Class Math Quiz Ranking Competition [ June 2025]

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Class 11th Math quiz contest of 2025

Time: 30 Minutes for 20 Question.

Class 11th Math Quiz Contest [May 2025]

The number of attempts remaining is 1

1 / 20

1. The coefficient of correlation r satisfies:

Option: I r I = 1

Option: 0 < r < 1

Option: I r I > 1

Option: - 1 < r < 0

2 / 20

2. Which of the following two sets are equal?

Option: A = {1, 2} and B = {1}

Option: A = {1, 2} and B = {1, 2, 3}

Option: A = {1, 2, 3} and B = {2, 1, 3}

Option: A = {1, 2, 4} and B = {1, 2, 3}

3 / 20

3. 3, 5, 7, 9 is an example of

Option: Arithmetic sequence

Option: Geometric sequence

Option: Harmonic sequence

Option: Fibonacci sequence

4 / 20

4. The first term of a G.P is 1. The sum of the 3rd and 5th terms is 90. Then the common ratio is:

Option: 1

Option: 2

Option: 3

Option: 4

5 / 20

5. If the mean of first n natural numbers is 5n/9, n =

Option: 5

Option: 4

Option: 9

Option: 10

6 / 20

6. How many elements are there in the complement of set A?

Option: 0

Option: 1

Option: All the elements of A

Option: None of these

7 / 20

7. Find the mean of 6, 7, 10, 12, 13, 4, 8, 12.

Option: 9

Option: 10

Option: 12

Option: 13

8 / 20

8. If the variance is 625, what is the standard deviation?

Option: 25

Option: None of the above

Option: 5

Option: 15

9 / 20

9. Relation between mean, median and mode is given by:

Option: Mode = 2 Median – 3 Mean

Option: Mode = 2 Median + 3 Mean

Option: Mode = 3 Median – 2 Mean

Option: Mode = 3 Median + 2 Mean

10 / 20

10. If the variance of the data is 121, the standard deviation of the data is:

Option: 121

Option: 11

Option: 12

Option: 21

11 / 20

11. Which of the following is an example of a geometric sequence?

Option: 1, 2, 3, 4

Option: 1, 2, 4, 8

Option: 3, 5, 7, 9

Option: 9, 20, 21, 28

12 / 20

12. The coefficient of variation is computed by:

Option: S.D/.Mean×100

Option: S.D./Mean

Option: Mean./S.D×100

Option: Mean/S.D.

13 / 20

13. Empty set is a _______.

Option: Infinite set

Option: Finite set

Option: Unknown set

Option: Universal set

14 / 20

14. The number of elements in the Power set P(S) of the set S = {1, 2, 3} is:

Option: 4

Option: 8

Option: 2

Option: None of these

15 / 20

15. Range of a data is equal to:

Option: Range = Max Value – Min Value

Option: Range = Max Value + Min Value

Option: Range = (Max Value – Min Value)/2

Option: Range = (Max Value + Min Value)/2

16 / 20

16. Find the median of 36, 72, 46, 42, 60, 45, 53, 46, 51, 49.

Option: 42

Option: 45.5

Option: 47.5

Option: 45

17 / 20

17. Which of the following is not a statement?

Option: Smoking is injurious to health.

Option: 2 + 2 = 4

Option: 2 is the only even prime number.

Option: Come here.

18 / 20

18. Write X = {1, 4, 9, 16, 25,...} in set builder form.

Option: X = {x: x is a set of prime numbers}

Option: X = {x: x is a set of whole numbers}

Option: X = {x: x is a set of natural numbers}

Option: X = {x: x is a set of square numbers}

19 / 20

19. The geometric mean of series having mean = 25 and harmonic mean = 16 is:

Option: 16

Option: 20

Option: 25

Option: 30

20 / 20

20. Order of the power set P(A) of a set A of order n is equal to:

Option: n

Option: 2n

Option: n2

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Sanjay Kumar

Math educator (6-12) with an MSc from Delhi University and quiz content creator at QuizRanker.in.

Class 11th Math quiz contest of 2025

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Sanjay Kumar