What number comes next?
Look at the series (1, 2, 11, 22, 121, 1012, 2101), determine the pattern, and find the value of the next number!Correct answers: 59
The first user who solved this task is Sanja Šabović.
#brainteasers #math
Letter boxIn 1891, Philip B. Downing, inventor, was awarded a U.S. patent for an improvement to the street letter (mail) box. This improvement in the covering and opening of outdoor mailboxes protected mail from both intruders and weather. It is relatively unchanged to this day. (No. 462,093) |