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Q: How many times does the digit 9 appears from 1 to 1000?

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11 times

How many times does the digit 1 occur in ten place in the numbers from 1 to 1000?

There are 280.

73

300 times.

146 times.

As a digit in other numbers it appears 20 times

300

196

1000

1000

It appears 25 times.

In a 500 page book the digit 1 appears 200 times

24

It is used 300 times.

The digit appears eleven time from 1 to 100.

All of them. That is, 1,000 of them (including zero).

I think it's 300.

4

There are 900 three-digit whole numbers between 1 and 1000

1 to 1000. Pilandromic 108

how many times gerater is the underlined digit 5 in 365,486,201 than the digit 5

If you count 11 as 2 instances, the digit 1 appears 18 times if you don't count 10, 19 times if you do. 10,11,12,13,14,15,16,17,18,19,21,31,41,51,61,71,81,91

#include<iostream> #include<array> #include<sstream> std::array<int,10> get_frequency (int range_min, int range_max) { if (range_max<range_min) std::swap (range_min, range_max); std::array<int,10> digit {}; for (int count {range_min}; count<=range_max; ++count) { std::stringstream ss {}; ss << count; std::string s {}; ss >> s; for (auto c : s) { ++digit[c-'0']; } } return digit; } int main () { std::array<int,10> digit {}; digit = get_frequency(1, 89); std::cout << "In the range 1 to 89...\n"; for (int d {0}; d<10; ++d) { std::cout << "\tthe digit " << d << " appears " << digit[d] << " times.\n"; } } Output: In the range 1 to 89... the digit 0 appears 8 times. the digit 1 appears 19 times. the digit 2 appears 19 times. the digit 3 appears 19 times. the digit 4 appears 19 times. the digit 5 appears 19 times. the digit 6 appears 19 times. the digit 7 appears 19 times. the digit 8 appears 19 times. the digit 9 appears 9 times.

The word "repent" appears 39 times, "repentance" appears 21 times, "repented" appears 9 times, and "repents" appears 5 times.

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