The average age of Seema, Sapna, Asha, Kavita and Atrye is $40 \,years.$ The average age of Seema and Sapna is $35 \,years$ and the average age of Asha and Kavita is $42 \,years.$ The age of Atrye is?
$48$
$47$
$46$
$32$
A student was asked to find the arithmetic mean of the numbers $3,11,7,9,15,13,8,19,17,21,14$ and $x$. He found the mean to be $12 .$ What should be the number in place of $x ?$
What is the average of all numbers between $100$ and $200$ which are divisible by $13\, ?$
In the first $10$ overs of a cricket game, the run rate was only $3.2 .$ What should be the run rate in the remaining $40$ overs to reach the target of $282$ runs ?
The average age of a graph of $9$ students is $20\, years.$ When $6$ more students joined the group, the average age falls by $2\, years.$ Then the average age of new students is
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 $^{\circ} C$ ?