The number of perfect square numbers between 50 and 1000 is = ?
Options:
A . 21
B . 22
C . 23
D . 24
Answer: Option D The first perfect square number after 50 is 64 $$\left( {64 = {8^2}} \right)$$ and the last perfect square number before 1000 is 961 $$\left[ {961 = {{\left( {31} \right)}^2}} \right]$$ So, the perfect squares between 50 and 1000 are the squares of numbers from 8 to 31. (31 - 8) + 1 = 24 Clearly, these are 24 in number.
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