Waste less time on Facebook — follow Brilliant.
×

Cryptograms

Cryptograms are puzzles where some (or all) digits are missing from an arithmetic operation. Tinker with different combinations of numbers and letters to unlock the right answer. See more

Algebraic Techniques

\[ \begin{array}{ccccc} & & & & 1&3 \\ + & & & & \bigtriangledown &7\\ \hline & & & 1 & 0 &0 \end{array} \]

Find the value of \(\bigtriangledown\) satisfying the cryptogram above.

\[ \begin{array}{ccccc} & & & & \spadesuit&2 \\ & & & & \spadesuit&\spadesuit\\ + & & & & 1 &\spadesuit\\ \hline & & & & 7 &8 \end{array} \]

Find the value that represents the symbol \( \spadesuit\).

\[ \begin{array}{ccccc} & & & & 9 &P \\ - & & & & P & Q \\ \hline & & & & Q & 6 \end{array} \]

Find the value of 2-digit integer \( \overline{PQ} \).

\[ \begin{array}{ccccc} & & & & \color{red} A & B \\ + & & & & \color{red} C & D \\ \hline & & & & \color{red} E & F \end{array} \]

The cryptogram above shows the sum of two 2-digit integers producing another 2-digit integer. In the leftmost column highlighted in red, which of the following cannot be true?

\[ \begin{array}{ccccc} & & & & 9 &5 \\ - & & & & 1 &\blacktriangle \\ \hline & & & & \blacktriangle & 8 \end{array} \]

Find the value that represents the symbol \(\blacktriangle\).

×

Problem Loading...

Note Loading...

Set Loading...