Question 24
Numbers are drawn from the 55 integers 1 through 55. At least how many must be drawn to guarantee two numbers whose sum is 24?
Source glossary (English–Vietnamese): Integers: số nguyên; At least: ít nhất; Ensure: chắc chắn; Sum: tổng.
Editorial clarification: select without replacement, so the two chosen numbers are distinct.
Source glossary (English–Vietnamese): Integers: số nguyên; At least: ít nhất; Ensure: chắc chắn; Sum: tổng.
Editorial clarification: select without replacement, so the two chosen numbers are distinct.