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1999 AMC 12 Question 6

AMC12 · 1999 AMC 12

Question 6

What is the sum of the digits of the decimal form of the product $2^{1999} \cdot 5^{2001}?$
  1. $2$
  2. $4$
  3. $5$
  4. $7$
  5. $10$