Question

Find the least no which must be subtracted from 1205 so that the reasulting no is a perfect square

Answer 1

If subtract 1 from 1205 it becomes 1204 which is not a perfect square ......so 1 is the least number

Answer 2

Heya dear user !!!

Here is your answer,

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Solution :

First find the square root of 1205 by long division method.

...............34
...........|————-
........3 | 1205
...........| - 9
....——|————-
.....64 | 305
..........| - 256
...——|————-
..........| 0 49

Hence, the least number is 49, which should be subtracted from 1205 to get a perfect square.

And the required perfect square number is
1205 - 49 = 1156

Hence, square root of 1156 = 34

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Hope it helps.