Math Is Fun Forum

I cant log out at all. I tried deleting my cookies, files, and history but it wont log me out.

for 2 you can use tens unit and thousands units. Dont get stuck on the ones.

3)This was carved on Diophantuss' tomb:
"God granted him to be a boy for the sixth part of his life, and adding a twelfth part to this, He clothed his cheeks with down; He lit him the light of wedlock after a seventh part, and five years after his marriage He granted him a son.Alas! late-born wretched child; after attaining the measure of half his father's full life, chill Fate took him. After consoling his grief by this science of numbers for four years he ended his life."
How old was Diophantus when he died?

The easy 100
The book i m using contains a metapuzzle and it is spread around the whole book so dont get confused if you get something abnormal.I will post the whole metapuzzle after we have finished all the other ciphers.
1)
WXFML LBH LTCH PH LBTDV PH YWD CWVH HDZK CHHL, KFCHXFZS CFNHK LBH HDZK. - BHJXHJL BFFNHJ, 31KL MK GJHKTZHDL
NO MORE HINTS!!!!
2)RH GHPHOVHP MLOLGBPH WRK ILDHP RBP UKIMLJBKJP FLSER. - QRH DKOLJ. IHQLMSZZFH RBJQ: QRH PHVHJQR BP TOKI PUKQQ LJG GKSEFLP.

i mjust waitin for ppl to start finishin all of them and then i m gonna put the harder ones. I still have 600 more!!.
And i will try not make typos thx for lettin me kno.

Its more than close, its right. Gud job John

3) D wi jks ndqoktpwbgn, rgowtqg gugpy vpkjb wssgils ndqowpngn dq wjkscgp qsgl akpvwpn. - Sckiwq W. Gndqkj

4)Wbvp co v wuut? V lgvjp wbkou scnpquo bvsu jkp iuuj tcorksunut. - Nvglb Wvgtk Uhunokj

5)F julb refq ibrrbp imkdbp reuk tqtui sbautqb F iuah reb rfjb rm juhb fr qempr. - Siufqb Nuqaui

thats the rite answer jane but i didnt like the way u got it so i will be careful not to post dates.
k heres the next 1:
Vcsj eckkpdjb asqvssj qvk sudhp, D mhvmyp hdgs qk qoy qcs kjs D'us jsuso qodsw astkos. - Ims Vspq

Letter Frequency analysis
Once you've got the feel for the overall sentence structure, look casrefully at thr frequency of the letters used.
Languages tend to have certain patterns. In english, the most common letter is E. aken in prder, the most commonly used letters are : ETAOINSHRDLU.
Count all the letters in the puzzle, look for the most common ones, and then compare them with the most common letter in the language. For example, if you discover that the most common letter in a particular puzzle is Q, then it is very likely that the Q is in place of either, E,T,A,O,I, OR N!

Vowels and spaces are going to most frequent. Consonants S,T,N and R are more common than others. The most common double letters are LL,EE, and SS.
You can also carry out frequency analysis on letter groups, especially foor small words and repeated letters. For example, compare two-letter words for common starting or ending letters. If there are three two-letter words that all start with the same letter but end with a different one, they may be words such as IT,IN, or IS.