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From a plane 400km north of X a student walk eastwords to a place Y which is 800cm from X.What is bearimg X from Y
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To John:
John, there is a HUGE underwater stone in this post.
It is in dimensions: 400 km north and 800 cm east. ( ! 800 centimetres ! )
It is typical provocative post.
There is a visitor here at the forum, who posts such provocative problems from time to time . . .
I just learned it in many cases.