Question

if N is a two digit perfect square number find n so that sum of their two digits becomes maximum​

Answer 1

Answer:

81

Step-by-step explanation:

9x9=81

8+1=9

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Answer 2

The possible values of N are 36 or 81

Step-by-step explanation:

N is a two digit perfect square number.

Let N=xy

Sum of two digits=9

$x+y=9$

Substitute x=0 and y=9

Then 0+9=9

But 90 is not a perfect square number.

Substitute x=1 and y=8

1+8=9

But 18 is not a perfect square.

Substitute x=2 and y=7

But 27 is not a perfect square number

Substitute x=3 and y=6

3+6=9 and 36 is perfect square number.

Substitute x=4 and y=5

But 45 is not a perfect square number.

Substitute x=5 and y=4

But 54 is not a perfect square number.

Substitute x=6 and y=3

But 63 is not a perfect square

Substitute x=7 and y=2

But 72 is not a perfect square

Substitute x=8 and y=1

81 is a perfect square number.

Hence, the possible values of N are 36 or 81

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https://brainly.in/question/5524063:Answered by Rishabh