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How many numbers are there from 2000 to 7000 which are both perfect squares and perfect cubes?
Answer & Solution
Correct Answer:
Option
B
$$\eqalign{
& 2000{\text{ - - - - - - }}7000 \cr
& {\text{Perfect square}} = \sqrt {4096} = 64 \cr
& {\text{Perfect cube}} = \sqrt {4096} = 16 \cr} $$
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