Squares and Square Roots

Which of the following is a perfect square?

• 1057

• 625

• 7928

• 64000

Which of the following will have 6 at unit place?

• 19²

• 11²

• 24²

• 13²

If 5278 is squared, then what will be at unit place?

• 8

• 7

• 6

• 4

The Pythagorean triples whose smallest number is 8

• 8, 16 17

• 8, 17, 18

• 8, 15, 17

• 8, 15, 16

The square of 42 is

• 1764

• 1664

• 1564

• 1504

A perfect square number between 30 and 40 is

• 36

• 32

• 33

• 39

Which of the following is a perfect square number ?

• 2222

• 32543

• 888

• 2401

What will be the number of zeros in the square of the number 100 ?

• 2

• 4

• 6

• 8

What will be the number of zeros in the square of the number 9000 ?

• 2

• 3

• 4

• 6

The square of which of the following numbers will be odd ?

10, 100, 1000, 99

• 10

• 100

• 1000

• 99