Respuesta :

wegnerkolmp2741o

Answer:

It appears 20 times.

Step-by-step explanation:

We can list the number of times

4, 14,24,34,40,41,42,43,44( counts as twice),45,46,47,48,49,54,64,74,84,94

It appears 20 times.

The digit '4' appears 19 times in the page numbers from 1 to 96 of a book.

we will count the occurrences of '4' in each tens place and then in each units place.

  1. The tens digit '4' appears in the 40s series: 40, 41, 42, 43, 44, 45, 46, 47, 48, and 49. This gives us a total of 10 occurrences. Note how the number 44 contains two fours, adding an extra count in this step.
  2. The units digit '4' appears once in every series of ten pages: 04, 14, 24, 34, 54, 64, 74, 84, and 94, adding 9 more occurrences of the digit '4'.

Therefore, by summing up the occurrences from both steps, we get 10 (from step 1) + 9 (from step 2) = 19. However, we counted the '4' in '44' in step 1 already, so we stick with a total count of 19.

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