1.

Find the largest number of 2 digits which is a perfect square

Answer»

Largest 2 digit NUMBER is 99. So we KEEP going backwards 99, 98, 97 ... till we hit a perfect square.


The first perfect square we hit will be:

81 (which is the square of 9)

Then

64 (which is the square of 8)

then

49 (which is the square of 7)

...


Answer: The largest square is 81




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