The average of first $46$ natural number is
$23$
$23.5$
$24$
$25$
Average of first $46$ natural numbers $=\frac{1}{46}\left[\frac{46}{2} \times(1+46)\right]=\frac{47}{2}=23.5$
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 weight of a group of $20$ boys was calculated to be $89.4 kg$ and it was later discovered that one weight was misread as $78 kg$ instead of the correct one of $87 kg$. The correct average weight is in $kg$
The average weight of $5$ persons, sitting in a boat, is $38 \,Kg$. If the average weight of the boat and the persons sitting in the boat is $52 \,Kg$, what is the weight of the boat? (in $kg$)
The sum of three numbers is $98 .$ If the ratio between first and second be $2: 3$ and between second and third be $5: 8,$ then the second number is
What is the average of the squares of the first $19$ natural numbers ?
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