Question

The smallest number to be subtracted from 2320 to make the difference a perfect square is _____. *
options are:_
20
18
16

Answer 1

269 lies between 256 and 289 , which are squares of 16 and 17 , respectively.Hence, 172 - 269 = 20 . We need to add 20 to 269 to make it a perfect square.

Answer 2

Answer:

I think the answer is 20