SSC CHSL MATHS QUIZ

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Question 1:

If the average of $a$ and $\frac{1}{a}(a \neq 0)$ is $x$, then the average of $a^{3}$ and $\frac{1}{a^{3}}$ is:

Question 2:

Numbers of boys and girls in a class are 20 and 35 respectively. Average Age of girls and boys are 16 years and 21.5 years respectively. The average age (in years) of all boys and girls is

Question 3:

The average of first twelve prime numbers is:

Question 4:

The average of square of natural numbers from 1 to 92 is?

Question 5:

The average of $n,(n+1),(n+2),(n+3),(n+4),(n+5)$ is-

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?

Question 7:

The average temperature for Monday, Tuesday, Wednesday was $30^{\circ} \mathrm{C}$ and for Tuesday, Wednesday and Thursday the average temperature was $33^{\circ} \mathrm{C}$. Accordingly, if Monday's temperature was $32^{\circ} \mathrm{C}$ then what was the temperature on Thursday?

Question 8:

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

Question 9:

The average salary of all the employees in a workshop is ₹ 18,000. The average salary of 7 technicians is ₹ 24,000 and that of the remaining employees is ₹ 12,000. What is the total number of employees in the workshop?

Question 10:

The average of 10 observations is 46 . It was realised later that an observation was misread as 42 in place of 142 . The correct average is