Question
How many integers with at least one eight and at least one nine as digits are there between and .
Text solutionVerified
Numbers containing both and Total (Number not containing and )
Total numbers
Numbers not containing We can fill the places with any number other than
Similarly for numbers not containing
Numbers not containing both and
Required
Total Req.
Numbers containing and
Hence, the answer is
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Question Text | How many integers with at least one eight and at least one nine as digits are there between and . |
Answer Type | Text solution:1 |
Upvotes | 150 |