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 PUZZLE OF THE WEEK
Puzzle of the week
HOME > MBA PREP CENTRE > DAILY TEST PREP > PUZZLE OF THE WEEK

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Instructions:
To submit the solution to the latest puzzle, you need to log in to TestFunda and on the puzzle page click on Solution. You will get a form to submit the solution. Please note that you can submit the solution only between Friday and Monday. Solutions posted in the comments below or sent as stand-alone emails will not be considered for prizes.

Puzzle #548 - Entangled Wires?
23-Nov-18
 Views : 474 Not yet rated
TestFunda Telephone Limited (TTL) laid a wire cable consiting of 120 wires underground between two of its telephone exchanges that were 8 km apart. However, after the cable was laid, they realised that individual wires could not be identified as they were not labeled. Now, the cable was underground and so identifying each wire would be a tedious job and would require ripping the entire ensemble up. Akhil, the senior technician at TTL, was handed the responsibility of identifying and labelling the wires at both ends without having to rip it all up. All he had at his disposal were a battery and a light bulb. He was also given a tape and a marker to label the wires. He didn't have any mode of transport and had to walk the entire distance. Deduce the shortest distance that he had to walk so as to identify and label each wire correctly. Provide a detailed explanation along with your answer. (Assume the wire resistance to be negligible.)

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