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

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None of these

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Solution

The correct option is D None of these
As we know that all the perfect square number ends with $1, 4, 9, 6, 5, 00$
So, a number ending in 8 can never be a perfect square.

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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 ?

The correct option is D None of theseAs we know that all the perfect square number ends with 1,4,9,6,5,00So, a number ending in 8 can never be a perfect square.

The correct option is D None of these
As we know that all the perfect square number ends with $1, 4, 9, 6, 5, 00$
So, a number ending in 8 can never be a perfect square.