The frequency distribution date is given below. If the average age is $17\, years,$ the value of $m$ is Age

The average monthly salary of a staff of $9$ persons is $Rs.\,2450.$ One member of the staff whose monthly salary is $Rs.\,2650$ is transferred. Find out the average salary of the remaining $8$ persons of the staff.(in $Rs.$)

The average temperature from Monday to Wednesday is $37^oC$ while the average temperature from tuesday to thursday is $34^{\circ} C$. The temperature of thursday is $\frac{4}{5}$ times to that of Monday. Find the temperature of thursday in $^{\circ} C$ ?

The cost of $5 \,kg$ of apples is $Rs.\, 450 .$ The cost of $12$ dozen mangoes is $Rs.\, 4320$, and the cost of $4 \,kg$ of oranges is $Rs.\,240.$ What is the total cost of $8 \,kg$ of apples$, 8$ dozens of mangoes and $8 \,kg$ of oranges ? (in $Rs.$)

The average of six numbers is $32 .$ If each of the first three numbers is increased by $2$ and each of the remaining three numbers is decreased by $4,$ then the new average is ?