2017 AMC 10 B
Complete problem set with solutions and individual problem pages
Problem 16 Medium
How many of the baseten numerals for the positive integers less than or equal to contain the digit ? (2017 AMC 10B Problem, Question#16)
- A.
- B.
- C.
- D.
- E.
Answer:A
We can use complementary counting. There are positive integers in total to consider, and there are onedigit integers, two digit integers without a zero, three digit integers without a zero, and fourdigit integers starting with a without a zero. Therefore, the answer is .
Think Academy Powered by ChatGPT