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BBB 2022 - Secondary 1 - Preliminary Round Question 20

BBB · BBB 2022 - Secondary 1 - Preliminary Round

Question 20

Numbers are drawn from 1234 integers 1 to 1234. At least how many numbers are drawn at random to ensure that there are two numbers whose difference is 5?
  1. 306
  2. 311
  3. 620
  4. 616