How many 5's would you write if you were to write all the numbers from 1 to 1,000,000?

carlos1942

from 1 to 100 there are 20 fives. So from 1 to a millon, there are 200.000 Feb 02 06, 5:04 AM

JVanVal

100000 Feb 02 06, 12:33 PM

gmackematix

Imagine we add zeros to the start of the lower numbers so that each is a six figure number. Counting from 000000 to 999999 will take 6,000,000 digits to write down and each digit will occur an equal number of times. That means that 600,000 fives would be written. Ignoring the initial zeros and counting from 1 to 1,000,000 makes no difference to the number of fives written so the answer is 600,000. Feb 02 06, 8:56 PM

minuscule_

I get it gmackematix, there's a pattern. One 5 in the first 10 numbers, Twenty 5's in the first 100 numbers, or 1.10^0 in 10^1, 2.10^1 in 10^2, 3.10^2 in 10^3, ..., 6.10^5 in the first 10^6 numbers, etc. You can be my teacher anytime. Feb 03 06, 1:04 AM

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If you wrote down all the numbers from 5 to 83, how many times would you write the number 4? How do you write zero in Roman numerals? Unscramble the following and, using all the letters, make a ten-letter word that a four-year-old child would recognize. Very possibly you have never had occasion to write the word, but it's likely that you've spoken it several times: ROAST MULES - ? If you write a book or paint a picture of a type intended solely to make money (rather than garner critical acclaim, too), what are you creating? And whence comes this interesting term, which would seem to have nothing to do with artistic endeavors?

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