Question 20
Find the intended pattern and determine x: $23306\leftrightarrow3$, $61811\leftrightarrow1$, $71428\leftrightarrow0$, $93063\leftrightarrow4$, $123456\leftrightarrow2$, $512907\leftrightarrow x$.
Use the source’s intended simple digit-counting rule; finite examples alone do not mathematically determine a unique rule.
Input: enter the requested whole-number answer without units. Leading zeroes from the paper grid may be omitted.
Use the source’s intended simple digit-counting rule; finite examples alone do not mathematically determine a unique rule.
Input: enter the requested whole-number answer without units. Leading zeroes from the paper grid may be omitted.