The average of five consecutive even numbers starting with $4,$ is
$6$
$7$
$8$
$7.5$
The five even consecutive numbers are $4,6,8,10$ and $12$
Their average $=\frac{4+6+8+10+12}{5}=\frac{40}{5}=8$
The average of $6$ numbers is $3.95.$ The average of two of them is $3.4,$ while the average of the other two is $3.85 .$ What is the average of the remaining two numbers ?
The average weight of $6$ persons is increased by $5\, kg$ when one of them who weighs $40\, kg$ is replaced by a new man. The weight of new man is (in $kg$)
The average age of a cricket team reduces by $2$ when two senior players aged $32$ and $30$ are replaced by $2$ youngsters of equal age. What is the age of these players?
The average of $7$ numbers is $5 .$ If the average of first six of these numbers is $4,$ the seventh number is
The average weight of $36$ students is $50 \,kg$. It was found later that the figure of $37 \,kg$ was misread as $73 \,kg.$ What is the correct average? (in $kg$)
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