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Question

Input: 86 open shut door 31 49 always 45

How many steps will be required to complete the rearrangement?


A

Five

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B

Six

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C

Seven

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D

Four

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E

None of these

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Solution

The correct option is B

Six


. Input: 86 open shut door 31 49 always 45

Step I: 31 86 open shut door 49 always 45

Step II: 31 shut 86 open door 49 always 45

Step III: 31 shut 45 86 open door 49 always

Step IV: 31 shut 45 open 86 door 49 always

Step V: 31 shut 45 open 49 86 door always

Step VI: 31 shut 45 open 49 door 86 always.


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