1. How many numbers are there between 99 and 1000, having at least one of their digits 7?
Question
Solution 1
To solve this problem, we need to consider the numbers from 100 to 999 (since 99 is not included).
First, let's calculate the total number of 3-digit numbers. This is 999 - 100 + 1 = 900 numbers.
Now, let's calculate the number of 3-digit numbers that do not contain the digit 7. For the fir Knowee AI StudyGPT is a powerful AI-powered study tool designed to help you to solve study prob
Knowee AI StudyGPT is a powerful AI-powered study tool designed to help you to solve study problem.
Knowee AI StudyGPT is a powerful AI-powered study tool designed to help you to solve study problem.
Knowee AI StudyGPT is a powerful AI-powered study tool designed to help you to solve study problem.
Knowee AI StudyGPT is a powerful AI-powered study tool designed to help you to solv
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