If the difference between the average of $x, y$ and $y$, $z$ is $12,$ then the difference between $x$ and $z$ is
$24$
$48$
$12$
$6$
$\frac{x+y}{2}-\left(\frac{y+z}{2}\right)=12$
$x-z=24$
The batting average of a cricket player for $64$ innings is $62$ runs. His highest score exceeds his lowest score by $180$ runs. Excluding these two innings, the average of remaining innings becomes $60$ runs. His highest score was (in $Runs$)
The average of runs of a cricket player of $10$ innings was $32 .$ How many runs must he score in his next innings so as to increase his average of runs by $4 ?$
There are $6$ consecutive odd numbers in increasing order. The difference between the average of the squares of the first $4$ numbers and the last four numbers is $64 .$ If the sum of the squares of the first and the last element (i.e., odd numbers) is $178 ,$ then the average of all the six numbers is
The daily earnings of a taxi driver during a week are: $Rs.0\,, Rs.65\,, Rs.70\,, Rs.52.50\,, Rs.63\,, Rs.73\,$ and $Rs.68$ What is his average daily earning for the week? (in $Rs.$)
The average of $13$ results is $60 .$ If the average of first $7$ results is $59$ and that of last $7$ results is $61,$ what will be the seventh result $?$
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