A Magic Triangle place number 10 6 on the sides is equal find that sum. Draw and show the arrangement. Collect data, find the approximate population of 5 states write all figure in Indian System. Arrange in descending order and round each to the nearest crore.

The sum of numbers 1 to 6 is $1+2+3+4+5+6 = 21$.
In a magic triangle, each vertex number is part of two sides, and each middle-side number is part of one side. If $S$ is the magic sum for each side, and $V$ is the sum of the numbers at the vertices, then $3S = 21 + V$.
To make $3S$ divisible by 3, $V$ must be divisible by 3. The smallest possible sum for three distinct numbers from 1 to 6 (for vertices) is $1+2+3=6$.
If $V=6$, then $3S = 21 + 6 = 27$, so $S = 9$.

Place the numbers $1, 2, 3$ at the vertices.
The remaining numbers are $4, 5, 6$. These will be placed in the middle of the sides.
For a side with vertices 1 and 2, the middle number must be $9 - (1+2) = 6$.
For a side with vertices 2 and 3, the middle number must be $9 - (2+3) = 4$.
For a side with vertices 3 and 1, the middle number must be $9 - (3+1) = 5$.

The magic sum is $\boxed{9}$.
The arrangement is as follows:

• Place 1 at the top vertex.
• Place 2 at the bottom-left vertex.
• Place 3 at the bottom-right vertex.
• Place 6 on the side between 1 and 2.
• Place 4 on the side between 2 and 3.
• Place 5 on the side between 3 and 1.

The sum of numbers on each side