The Four Presidents Logic Puzzle

Think you're logical? Try this puzzle to test yourself: Presidents 1, 2, 3, and 4 need to fly to the Oval Office, but it takes each president a different number of days to get there. According to the rules of the puzzle, only two presidents can fly at once, and the flight will take as long as the slower president. It takes president 1 a day to get to the Oval Office, while president 2 takes two days, president 3 takes five days and president 4 takes ten days. What is the shortest amount of time it would take to fly all of these presidents to the Oval Office? Watch the video to understand how to tackle this problem, and to get the answer.

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