Assume that the pages are numbered 1-145 in order and we don't have any other page numbering system.

In every ten pages the digit 5 will appear in the units column once,

e.g. 5, 15, 25, 35, 45 etc.

That makes 15 fives.

In the 50's the digit 5 will also appear in the tens column

e.g. 50,51,52,53,54,55,56,57,58,59

That makes another 10 fives.

Don't worry about page 55, remember we counted the unit's digit 5 first then the ten's digit 5.

The book is too short to have digit 5 in the hundreds column.

So the digit 5 appears 25 times in the numbering of a 145-page book. == Answer

== From 1 to 145, we have 9 one-digit numbers and 100 two-digit numbers and 46 three-digit numbers

In one-digit numbers we have only one chance to have 5.

In two-digit numbers we can have 5 in the units place, in the tens place or the both.

If we have 5 in the units place, then we can fill up the tens place by the numbers from 1 to 9. So, we get 9 chances.

If we have 5 in the hundreds place, then we can fill up the units place by the numbers from 0 to 9. So, we get 10 chances.

In three digit numbers, we can’t have 5 in hundreds place and tens place because we have 145 pages in all. So, we can have 5 in units-place only.

The hundreds place cannot be filled with any other number except 1.

So, we can fill the tens place by the numbers from 0 to 4 only. So, we get 5 chances.

In total, 25 times we come across 5. Source: www.icoachmath.com

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Q: How many times will the 5 digit be used in numbering the pages of a 145-page book?

Write your answer...

20

The decimal system we normally use is base 10. That means that each position has 10 times the place-value of the digit to the right of it.Binary is base 2. Hexadecimal is base 16.

69

The Times newspaper has 104 pages in total.

The Times Will Suit Them has 272 pages.

In Times Like These has 307 pages.

16000

one

first digit time second digit and second digit times first digit then repeat

i am a two digit # my tens digit# is 3 times my ones digit #and the sum of my digit is 12 what am i

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

10 times for the one's digit, 1-100 10 times for the ten's digit, 60-70 = 20 times

208

285

The knight at all times has 398 pages.

Death Times Three has 213 pages.

Times Without Number has 156 pages.

Destiny Times Three has 117 pages.

5284

Ten times.

100 times greater.

182

1.382 OR 0.000 or 2831

#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.

6 times