Question

How many non square numbers lie between the pair of numbers 80² and 81² ?

Answer 1

Step-by-step explanation:

Property : Between two consecutive square numbers n² and (n+1)² there are 2n non - square numbers.

Number of non - square numbers between 80² and 81² or (80+1)² - (2×80) = 160

Hence, there are 160 non - square numbers between 80² and 81².

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