Question

Which one the following numbers is a perfect square?
A 1057 B 23453
C 7928
D 10201

Answer 1

Answer:

10201 is a perfect square

Answer 2

10201 is a perfect square. Thus Option D is correct

Solution:

There is a pattern in square numbers,

When we square any number it’s last digit can be only 1,4,9,6,5,0

So, The last digit of a square number cannot be 2,3,7,8

Hence among the given numbers 1057, 23453, 7928 and 10201

Out of these numbers only 10201 can be the perfect square , since its last digit is 1

But the other numbers are not surely the square numbers as they have the last unit digit 7, 3 and 8

Learn more about Perfect square

Which of the following numbers are perfect squares?

(i) 121

(ii) 136

(iii) 256

(iv) 321

(v) 600

https://brainly.in/question/4902022

Find whether each of the following numbers is a perfect square or not.

a)121

b)55

c)81

d)49

e)69

https://brainly.in/question/3249765