if tens digit of a perfect square is 7,how many possible values can its unit digit have?please show process.

Question

anonymous · Answer

is this a 2 digit number?

anonymous · Answer

anonymous · Answer

no specification given can be any two or more than two

anonymous · Answer

right

anonymous · Answer

your answer is on the website

anonymous · Answer

i can see a list of squares up to 400 on that website - that all
up to 400 - none of them have 7 as tens digit

anonymous · Answer

24 square has i.e 576 but there may be other no. too!

anonymous · Answer

the answer is i dont know im afraid - as you know there are an infinity of numbers so there might be some - im not an expert on number theory

anonymous · Answer

right - then there is probably many more not necessarily ending in 6

anonymous · Answer

yeah