Question

How many of the first 1000 natural numbers contain at least one odd digit?

Answer 1

From 0 to 999 it's about 500

Answer 2

Answer:

consider 3 digit that can be formed by 5 digits 0 2 4 6 8

It's 5*5*5*= 125

Subtract 000

124 digits containing only even digits

So it's

1000-124= 876

Step-by-step explanation: