Calculate a x b
Look at the series (156, 615, 561, a, 413, 341, 132, b), determine the pattern, and calculate a x b.Correct answers: 61
The first user who solved this task is Slobodan Strelac.
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Alberto FortisDied 21 Oct 1803 at age 62 (born 11 Oct 1741). Italian geologist. |