Question

5. Which of the given number sets contains all integer numbers?

{-5, √ō, π}
{0, 13, √/20}
{√4,-1,9.5}
{√49,-1,0}

Answer 1

{√49,-1,0}

Explanation:

√49 = 7, because 7*7 = 49

7, -1 and 0 are all integer numbers.

π isn't integer, √20 is not an integer (it's 2√5), 9.5 is not an integer.