Final door! if you crack this code, you'll find out if your route out of the prison was the right one: if banana becomes ananab - then 458124 becomes? answers is 421458

This is false.

If Banana corresponds to the code 458124 you would have few possibilities of combination for the letters of BANANA: B=4; A= 5-1-4; N=8-2.

Now if BANANA becomes ANANAB does not matter the combinations of ANANA the last letter which is B should only be the number 4, so the code would have to be 4 in the last letter on the right side. So the code 421458 is not the right one.

The answer provided in this question is incorrect. The correct answer to this riddle is 421854. Banana spelled backwards is ananab. This is done by writing the last letter first, and then moving from right to left, from end of the word to the beginning. Following this, the number 458124 written from right to left is 421854.

the real answer is b