How many numbers are there from 2000 to 7000 which are both perfect squares and perfect cubes?
A. 0
B. 1
C. 2
D. 3
Answer: Option B
Solution(By Examveda Team)
$$\eqalign{ & 2000{\text{ - - - - - - }}7000 \cr & {\text{Perfect square}} = \sqrt {4096} = 64 \cr & {\text{Perfect cube}} = \sqrt {4096} = 16 \cr} $$This Question Belongs to Arithmetic Ability >> Number System
Related Questions on Number System
Three numbers are in ratio 1 : 2 : 3 and HCF is 12. The numbers are:
A. 12, 24, 36
B. 11, 22, 33
C. 12, 24, 32
D. 5, 10, 15
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