Arithmetic Mean

Find the arithmetic mean of the progression $1,3,5,7,9,.....,23$.

Find the arithmetic mean of the progression $1,3,5,7,9,.....,25$.

Find the arithmetic mean of the progression $2,4,6,8,10,.....,40$.

Find the arithmetic mean of the progression $2,4,6,8,10,.....,48$.

Find the arithmetic mean of the progression $2,4,6,8,10,.....,50$.

A car covers a distance of $65$ km in first hour of its journey, $55$ km in second hour and $90$ km in the last hour. Find the average speed of the car for the whole journey.

A series has $6$ consecutive odd numbers such that the last number of the series is one-third of $429$. Find the arithmetic mean of the series.

Find the arithmetic mean of three numbers such that the first number is $40\%$ more than the second number and also $30\%$ less than the third number. Third number is $50$.

If $A, G$ and $H$ are arithmetic, geometric and harmonic means between three positive numbers $a, b$ and $c$. Then the cubic equation whose roots are $a, b$ and $c$ is given by

If one geometric mean $G$, and two arithmetic means $p, q$, be inserted between two numbers, then prove that, $G^2=\left(2p-q\right)\left(2q-p\right)$.

Which of the following is not an absolute measure of dispersion?

In a race, the first four winners are to be awarded points .Each winner’s points must be 5 more than that of the next position winner. Total sum of the points to be awarded is 50. What will be the points for the third position winner?

Four quantities are such that their arithmetic mean (A.M) is the same as the A.M of the first three quantities. The fourth quantity is:

For how many days, the rainfall was less than the mean rainfall?

Find the mean rainfall for the week:

Find the mean marks obtained by the group:

What is the mean weight?

Find value of $n$, if the arithmetic mean of $a$ and $b$ is $\frac{a^n+b^n}{a^{n-1}+b^{n-1}}$.

The sum $(101+ 102+ 103+ ......+200)$ is equal to _____.

Look at this series: $8, 6, 9, 23, 87$. What number should come next?