Square Root and Cube Root - Arithmetic Aptitude Questions and Answers

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How many two-digit numbers satisfy this property.: The last digit (unit's digit) of the square of the two-digit number is 8 ?

None of these

Answer : Option D

Explanation :

   2|64009( 253     |4     |----------   45|240     |225     |----------  503|  1509     |  1509     |----------     |     X     |----------