Question

Which of the following can be a perfect square?
(i) A number ending in 3 or 7
(ii) A number ending with odd number of zeros
(iii) A number ending with even number of zeros
(iv) A number ending in 2.

Answer 1

Option (iii) A number ending with even number of zeroes

Explaining the options:

• Option (i) there is no perfect square number that ends in 3 or 7 because all perfect squares end with 0, 1, 4, 5, 6 and 9.

• Option (ii) there is no perfect square number that ends with odd number of zeros, e.g., 1000, 100000, 10000000, ... have odd number of zeros, but they are not perfect squares.

• Option (iii) there are perfect squares, those end with even number of zeros, e.g., 100, 10000, 1000000, ... .

• Option (iv) there is no perfect square number that ends in 2 because all perfect squares end with 0, 1, 4, 5, 6 and 9.

Answer: Option (iii) is correct.

Answer 2

Answer:

answer is (iii)

a number ending withbeven number of zeros

Step-by-step explanation:

because even numbers with zeros makes a perfect square hope its helpful

thank you