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BEBRAS 2021 Grade 7-8 Round 2 Ext Question 3

BEBRAS · BEBRAS 2021 Grade 7-8 Round 2 Ext

Question 3

Bob wants to use his mother’s computer. Its password consists of her name Emily with exactly one uppercase letter, and her two-digit age placed either before or after the name. Bob knows her exact name and age. What is the smallest number of attempts that guarantees finding the password?
  1. 2
  2. 10
  3. 20
  4. 50