Question 1:   Find the median of the data set  $\mathrm{13,2,9,15,10,24,11}$ .

Question 2:   Find the median for the data  $\mathrm{18,43,24,17,21,26}$ .

Question 3:   The arithmetic mean of  $3.7$  and  $x$  is  $2.15$ .  Find  $x$ .

Question 4:   The arithmetic mean of the two numbers is  $6.8$ ,  and the arithmetic mean of the other ten numbers is  $2.9$ .  Find the arithmetic mean of these  $12$  numbers.

Question 5:   The arithmetic mean of  $5$  numbers is  $6.9$  and the arithmetic mean of the other two numbers is  $6.2$ .  Find the arithmetic mean of these seven numbers.

Question 6:   The arithmetic average of  $3.7$  and  $x$  is  $2.15$ .  Find  $x$ .

Question 7:   The arithmetic mean of two numbers is  $5.6$ .  Find these numbers if one of them is  $3.4$  less than the other.

Question 8:   The first year from the field of  $100$  acres harvested  $3510$  tons of grain, the following year  $3680$  tons. What is the average yield per acre of this field?

Question 9:   Find the arithmetic mean of fractions  $\frac{21}{13},\frac{29}{18},\frac{31}{13},\frac{25}{18}$ .

Question 10:   The cyclist traveled at  $18\raisebox{1ex}{$km$}\!\left/ \!\raisebox{-1ex}{$h$}\right.$  for  $1$  hour, then at  $17.5\raisebox{1ex}{$km$}\!\left/ \!\raisebox{-1ex}{$h$}\right.$  for  $2$  hours, and at  $18.2\raisebox{1ex}{$km$}\!\left/ \!\raisebox{-1ex}{$h$}\right.$  for the last  $3$  hours. At what average speed did the cyclist move?