Question

how many non square lie between the square of 19 and 20​

Answer 1

Answer:

Square of 19=361

Square of 20=400

Non square numbers which lie between 361 and 400= 400-362=38

Or, another way to solve this type of question is to multiply 2 with the predecessor which in this case is 19.

So your answer is:

2×19=38

I hope you understood both the methods.

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