Thursday, June 19, 2008

Round 267

Date Released: June 19th, 2008.
Date Rewarded: June 26th, 2008.

Jhudora was walking down a path one day when a Chomby appeared in front of it. "Solve this puzzle, and you may pass," it said.

An ancient tomb in the Lost Desert has the following grid of numbers engraved on the tomb door:


If the correct numbers are engraved on the tomb door, it will open. However, one of these numbers is wrong.

If you take the wrong number on this grid, and multiply it by the number it should be, what number would you get? For example, if the wrong number was 456 and you knew the correct number was 465, you would multiply the two and submit the answer "212040". Please only submit the answer as a number; do not show your work, or submit ANY information other than the answer. Otherwise, your submission may be disqualified.


Prize


Lost Desert Map Scroll

Click to show/hide solution

If you sort the number in the ascending order, you will get:
6, 15, 35, 77, 143, 221, 323, 437, 667, 897, 1147, 1517, 1763, 2021, 2491, 3127

We know that the prime number sequence is:
2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61 ...

Notice that:
2 x 3 = 6
3 x 5 = 15
5 x 7 = 35

The number in the sequence is the product of two consecutive prime numbers. Therefore, you can continue to test out the sequence until you find the wrong number in the sequence. It is 29 x 31 = 899, not 897. Therefore, the answer should be:
897 x 899 = 806403

Results: 4024 people guessed the correct answer. (earning themselves 498 NP each)

18 comments:

leslielovesandrew01 said...

I figuered it out! This was so easy!

flashzz3 said...

wat is it i dont get it???

un-bunny said...

i'm going to do it right now! thanks!

flashzz3 said...

wat is it i dont get it

Elrin said...

Thank you, i got it! ^^

Paul said...

Thanks!!

rnrnrnaa said...

errr. which one's the correct number?? 0,0

Arpee said...

Thanks for the hint, I got it.

Amy said...

i got it, it was easy you only have to do what the hint says IT'S EASY!!!

LC Solver said...

The correct number is the number it is supposed to be.

Don Pero said...

This is off-topic...

I want to hide/show some parts of text on my own blog (no neopet related). Could you tell me how do you got that "Click to show/hide hints"? or where i can find how to do it?

Thanks

shortbutasian424 said...

can someone help on how to solve it or give the answer i have figured out the last like 9 conundrums myself but the easy ones always stump me!

Jazzy said...

Thanks I got the answer :)

lolomgmegan8 said...

What is the answer?? Please tell me.

LC Solver said...

Don Pero, here is what I used

http://me.zestful.org/2008/03/tt-create-spoilers-blogger-wp/

paranoiaheights said...

Cheers :D I got it!

Deuce Loosely said...

I found it amusing that the Chomby flipped the script on Jhoudra this week. But what's going on between these two? :P

LC Solver said...

yeah, I didn't notice at first and when I found out, it is very funny. But check today puzzle, it's even funnier.