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Question 1:

Average age of a couple is 25 years at the time of marriage. After 3 years, they have a 2 years old baby. The average age of the family is:

Question 2:

Ten years ago, the average age of $\mathrm{P}$ and $\mathrm{Q}$ was 20 years. Average age of $\mathrm{P}, \mathrm{Q}$ and $\mathrm{R}$ is 30 years now. After 10 years, the age of $\mathrm{R}$ will be:

Question 3:

The average age of 12 persons in a committee increased by 3 years, when 2 men of age 33 years and 37 years replaced by 2 women. Find the average age of 2 women (in years).

Question 4:

The average weight of $39$ students of a class is $40 \mathrm{~kg}$. If the weight of class teacher is added the average increases by $500 \mathrm{gm}$. Find the weight of the class teacher.

Question 5:

The average of five positive numbers is 56. If the first number is three-fourth of the sum of the last four numbers, then the average of the last four numbers is:

Question 6:

The number of students in section $A$ and section $B$ of a class are 40 and 52, respectively. The average score in mathematics of all the students is 75 . If the average score of the students in $\mathrm{A}$ is $20 \%$ more than that of students in B, then what is the average score of students in B?

Question 7:

The mean temperature of Monday to Wednesday was $27^{\circ} \mathrm{C}$ and the mean tempreture of Tuesday to Thursday was $30^{\circ} \mathrm{C}$ if the temperature of Monday was $2 / 3$ rd of the temperature of Thursday, What was the temperature of Thursday?

Question 8:

The average weight of 39 students of a class is 40 kg. If the weight of the teacher is included, the average weight rises by $500 \mathrm{gm}$. What is the weight of teacher?

Question 9:

Find the average of first 15 multiples of 3.

Question 10:

The average of thirteen numbers is 47. The average of the first three numbers is 39 and that of next seven numbers is 49. The 11th number is two times the 12th number and 12th number is 3 less than the 13th number. What is the average of 11th and 13th numbers?