Five pens D, E, F, G and H are kept one above the other (not necessarily in the same order). Only H is between E and F. F is below E. G is just below F. D is three places below H. How many pens are between E and D ?
From the statement,
i.Only H is between E and F.
ii.F is below E. G is just below F.
Therefore from the diagram, it is known that 3 pens are between E and D.
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