SSC MTS MATHS QUIZ

Question 1:

If the average of the following six observations: $x+2, x+5, x+8$, $x+11, x+14$ and $x+17$ is $12.5$, what is the average of the first three observations?

3

9

8

6

Question 2:

Average age of $A, B$ and $C$ is 34 years, 7 years ago, average age of $A$ and $C$ was 23 years. If $B$ is 10 years older than $\mathrm{C}$, then find the age of A. (in years)

26

28

32

24

Question 3:

The marks of a student were entered as 88 instead of 68 . Due to this, the average marks of the class increased by $0.5$. What is the number of students in the class?

10

20

30

40

Question 4:

A student scores $85 \%$ in an examination. The scores were $79,81,88$ and 94 in 4 subjects. Find the student's score in the 5 th subject, if full marks of each subject is 100.

83

84

85

86

Question 5:

The average of 6 numbers is 8 and the average of 8 numbers is 6. What will be the average of both together?

$6 \frac{3}{4}$

$6 \frac{.5}{7}$

$6 \frac{6}{7}$

$6 \frac{4}{7}$

Question 6:

The average of ten numbers is 6, If each number is multiplied by 12 , then what will be average of the new set of numbers?

20

28

36

72

Question 7:

Average of four consecutive even numbers is 37 and average of four consecutive odd numbers is 30 . Find difference between highest even number and second smallest odd number?

5

13

9

11

Question 8:

The average of 17 numbers is 35. If each number is decreased by 3, what will the new average be?

32

25

29

27

Question 9:

What is the average of smallest 5 prime numbers?

7

3.6

5.6

7.8

Question 10:

If the average of the squares of two consecutive odd natural numbers is 145 , then the average of the two numbers is:

10

16

12

14