Question

If the square root of 1234321 is subtracted from the square of 51, then which smallest number should be added to the resultant to make it a perfect square?

(1) 51
(2) 41
(3) 31
(4) 21

Please explain it too how did you do it ​​

Answer 1

Answer:

(3) 31

Step-by-step explanation:

Firstly , the square root of 1234321 = 1111

Secondly , the square of 51 = 2601

Now the subtraction ,

2601 - 1111 = 1490

1490 is not a perfect square .

The square root of 1490 is 38.6

So , let's take square of 39 , which is 1521.

So , 1521 - 1490 = 31

Therefore , 31 is the smallest number which should be added to the resultant to make it a perfect square.