- ATwo
- BThree
- CFour
- DFive
Step-by-Step Solution
Step I: 52 18 43 25 61; Step II: 18 43 25 52 61; Step III: 18 25 43 52 61 (ascending). Three steps are needed.
Answer: B) Three
A number-arrangement machine, given an input line, rearranges it step by step: in each step it moves the largest remaining number to the right end while the other numbers keep their relative order. Input: 52 18 61 43 25. How many steps are needed to arrange all the numbers in ascending order?
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