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Puzzle ZXEW 



??

How many days before 17th August is it, if...

...50 days before then, it was four times as many days since March 30th?

Puzzle Copyright © Kevin Stone

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Answer
18 days.

Reasoning
There are 140 days between the two dates, and these 140 days are split in the following way:

   4 x Answer | 50 days | Answer

We already know about 50 days, so we have to split the remaining 90 days into the ratio 4:1, which is 72:18.

   72 days | 50 days | 18 days

 

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