shuchichadha shuchichadha
  • 02-08-2022
  • Mathematics
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How many numbers from 100 to 999 have exactly one zero digit

How many numbers from 100 to 999 have exactly one zero digit class=

Respuesta :

djp6182583 djp6182583
  • 02-08-2022

Answer:

180.

Step-by-step explanation:

100 contains 2  zero digits.

101 - 109 have 9 numbers,  110 to 200 have 11 numbers

so for 101 to 200 its 20 numbers

Its also 20 for 201 to 300  and for all sets of 100 up to 900.

- that is 7 * 20 = 140 numbers

Finally from 901 to 999 we have 18.

Total = 20 + 140 + 18

= 2 + 20 + 140 + 18

= 180.

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