Question 18

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Question 18

Post by TECHNOTHLON on Thu Jul 21, 2016 12:27 am

Tintin has reached the outskirts of the castle where they meet Rastapopoulos’s army, also ready to revolt. However, the electricity supply there had been cut.

Question 18:
A soldier comes to Tintin with a foldable conductor that has 12 segments and 11 joints, which he has to use to connect the battery to the water pump. The joints can be only at a position such that the corresponding segments are allowed to be only at an angle 90 degrees to each other – right or left. Assuming that the first joint is towards the right(with respect to the first segment), and any overlapping will cause a short circuit, what is the number of ‘safe’ orientations of the foldable conductor?
(As you can see in the figure the given orientation is a correct one.)
a) 142 b) 143 c) 144 d) 145

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Re: Question 18

Post by Devansh on Sun Jul 24, 2016 9:01 am

Answer is 143

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Re: Question 18

Post by OO7 on Sun Jul 24, 2016 4:53 pm

OO7 marked 144 so it might be correct

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