A thief is capable of running 20kms a day. A policeman who is to catch the thief can run 4 1km on the 1st day, 2kms on the 2nd day and so on. Then on which day will the policeman catch the thief.

iten

• Feb 19th, 2015

The first day

manny

• Dec 16th, 2014

39 days

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