Question

Wich of the following is rational number

√7, √25, √25\6, √7\2​

Answer 1

Answer:

√25 is the right answer

Step-by-step explanation:

1.√7

7 is not a perfect square so √7 is a not a rational number

2.√25

25 is a perfect square for 5 because 5² is 25

so √25 is a rational number

3.√25/6

in the second option we saw that √25 is a rational number but √6 isn't a rational number so √25/6 is not a rational number

4.√7/2

we know that √7 is not a rational number and 2 is a perfect square root but Not a perfect square

so √7/2 is not a rational number

hence √25 is the only rational number in the above options so option 2 is right