1990 AJHSME Problems/Problem 21
Problem
A list of numbers is formed by beginning with two given numbers. Each new number in the list is the product of the two previous numbers. Find the first number if the last three are shown:
Solution
If we do we get , then we do giving again, then is and is and finally gives as the answer, which is
See Also
1990 AJHSME (Problems • Answer Key • Resources) | ||
Preceded by Problem 20 |
Followed by Problem 22 | |
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