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Interview Question for Quantitative Analyst at Citi:
Nov 09, 2012

Burn two ropes, one needs 60 minus, another needs 30. How to get 45 minus time.


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Feb 28, 2013

by pwseason:

first burn the 60mins rope, fire it in both ends, after finish,30 minutes has past, then burn the other rope also start to burn on both ends. After finish, total time is 45min
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