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MATH / When the first 50 counting numbers are arranged in columns, as shown, what is the sum of all of the counting numbers in column text E? …

Problem

Answer published by the source. Consult the official source to check your work against its answer.

problem

When the first 5050 counting numbers are arranged in columns, as shown, what is the sum of all of the counting numbers in column $\text E?$ \begin{tabular}{lllll} A & B & C & D & E\\ 1 & 2 & 3 & 4 & 5\\ 10 & 9 & 8 & 7 & 6\\ 11 & 12 & 13 & 14 & 15\\ 20 & 19 & 18 & 17 & 16\\ . & . & . & . & .\\ . & . & . & . & .\\ . & . & . & . & . \end{tabular}
Plain-text mathematical notation (without MathML)
When the first 50 counting numbers are arranged in columns, as shown, what is the sum of all of the counting numbers in column $\text E?$ \begin{tabular}{lllll}
A & B & C & D & E\\
1 & 2 & 3 & 4 & 5\\
10 & 9 & 8 & 7 & 6\\
11 & 12 & 13 & 14 & 15\\
20 & 19 & 18 & 17 & 16\\
. & . & . & . & .\\
. & . & . & . & .\\
. & . & . & . & .
\end{tabular}
Original LaTeX notation
When the first $50$ counting numbers are arranged in columns, as shown, what is the sum of all of the counting numbers in column $\text E?$ \begin{tabular}{lllll}
A & B & C & D & E\\
1 & 2 & 3 & 4 & 5\\
10 & 9 & 8 & 7 & 6\\
11 & 12 & 13 & 14 & 15\\
20 & 19 & 18 & 17 & 16\\
. & . & . & . & .\\
. & . & . & . & .\\
. & . & . & . & .
\end{tabular}

level

Level 3

type

Algebra

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Source and history

Official source

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