3
$\begingroup$

You have been invited to join a secret cryptography society, but you have to decode this message and meet at the location.

This is the email you receive:


Let's learn your times tables!

$5$ X 8 = 74
2 X $3$ =$ $12
2$5$ X 1$0$7 = 2794
41$ $X $46$ =$ $279
3$52$ X$ $75 = $55$6
65$ $X $5$ = 9$3$1
$52$8546$ $ X $17$ = 382799$6$
94$ $X $32$6 = $78$
57$ $X $4$0$4$ =$ $1234567890
$32$0 X$ $753 = $49$467
494$ $X $46$ =$ $573
$56$ X$ $367 = $56$
683$ $X $52$85 =$ $748
$53$4 X$ $749 = $176$
7552$ $X 73$32$ =$ $278

Now you've learnt your times tables, it's time to$87$

Pbzr naq svaq hf!


Where are you supposed to meet?

Hint:

You need to go into edit mode to see it

Other hint:

Why isn’t everything encrypted with mathjax?

$\endgroup$
13
  • 1
    $\begingroup$ Not every digit in your expressions is encoded as MathJax; perhaps this has to do with the answer. $\endgroup$
    – gparyani
    Sep 2, 2018 at 17:38
  • $\begingroup$ hmmm... maybe :) $\endgroup$
    – Rohit Jose
    Sep 2, 2018 at 17:42
  • $\begingroup$ Why are those two lines in bold? can someone edit it to make it normal text? $\endgroup$
    – Rohit Jose
    Sep 2, 2018 at 17:46
  • $\begingroup$ They are in heading font; heading font shows in bold. $\endgroup$
    – gparyani
    Sep 2, 2018 at 18:19
  • $\begingroup$ Placing a row of dashes directly below a single-line text marks it as heading, which will be rendered as bold type. If you want to draw a horizontal line, type a line of dashes with blank lines before and after it. $\endgroup$
    – M Oehm
    Sep 2, 2018 at 18:20

1 Answer 1

3
$\begingroup$

You are supposed to meet at...

The Training Room at 52.4754° N, 1.8845° W

The message was...

Hidden by encoding certain characters with mathjax. These numbers converted from ascii to text yielded the address above. I assumed that the final 84 was actually an 87.

$\endgroup$
1
  • 2
    $\begingroup$ I thought I put in the co ordinates for the custard factory... but you're close enough. Well done! $\endgroup$
    – Rohit Jose
    Sep 3, 2018 at 20:54

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.