Zaben´s Math: 2
Number Theory
Level
3
Zaben Oldwheel had a test in which the math teacher asked how many terms 1 to 1000 have. Since she wanted to test how far Zaben´s mind would go to eliminate number 3s.
Following the same rational thinking of the anterior problem solve it!
The answer is 729.
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1 solution
By doing the first problem of Zaben´s Math series we already know that for him 1 to 100 has 81 terms.So how do we discover how many terms 1 to 1000 has in his mind? We know that in 1 to 100 we remove 19 terms that has the number 3.So to discover 1 to 1000 we do 9x19=171 then it doesnt stop there we complete remove from the equation 300 to 399.So 171+99=270 So 1000-270=730 so in Zaben´s Math 1 to 1000 has 730 terms.