PI Day Quiz (2022)

Send an email to piday@n_______a.com with the answers.
The third, fourteenth, fifteenth, ninty-second, sixty-fifth, thirty-fifth, eighty-ninth, seventy-ningth, thirty-second, thirty-eighth, forty-sixth, twenty-sixth, forth, thirty-third person who correctly answer at least three questions will get a small prize. (if there are not enough answers, then the lowest places with get a prize - starting with first, second, up to the missing ones. There are 14 prizes in total)


1. Find the next four numbers in world most popular number series ?

3141 5926 5358 9793 2384 6264 3383 2795 0288 4197 1693 9937 5105 8209 7494 ?

2. Four pencils are held together with a rubber band. The figure shows the bottom of the pencils and the band. What is the length of the band if the diameter of a pencil is 1 centimeter?


3. Solve the following equasion by replacing each letter with a digit from 0 to 9. The numbers are obtained by concatenating the numbers (e.g. if P=7, I=6, E=4, then PI=76, E=4 and PIE=764)



4. What is the length of the number PI (how many digits is the number PI made of)?


Bonus question, just for fun.
Given an infinite plane filled with parallel infinite lines 2 centimeters apart, what is a probability when you randomly throw a needle of length of 1 centimeter to touch or cross a line?




As always, in addition interesting video and the read from last years contest.

P.S. Always look at the source of the problem...



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