How many perfect squares lie between 120 and 300 ?
Options:
A . 5
B . 6
C . 7
D . 8
Answer: Option C $$\eqalign{ & {\left( {11} \right)^2} = 121{\text{ }} \cr & {\text{And }} \cr & {\left( {17} \right)^2} = 289 \cr} $$ So, the perfect squares between 120 and 300 are the squares of numbers from 11 to 17. Clearly, these are 7 in number.
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