The average of five consecutive even numbers starting with $4,$ is
$6$
$7$
$8$
$7.5$
The average of $50$ numbers is $38 .$ If two numbers $45$ and $55$ are discarded, the average of the remaining set of numbers is
The average of marks of $28$ students in Mathematics was $50 .$ $8$ students left the school, then this average increased by $5 .$ What is the average of marks obtained by the students who left the school?
Find the average of all the numbers between $6$ and $34$ which are divisible by $5$
The average of $11$ results is $50 .$ If the average of the first six results is $49$ and that of the last six is $52.$ The sixth result is
The average marks of $40$ students in an examination was $25 .$ It was later found that the marks of one student had been wrongly entered as $73$ instead of $37.$ What is the value of correct average