Question

1. Which of the following cannot be rational number?
(a) 0/5 (b) 0/-5
(C) 5/0
(d) -1​

Answer 1

Answer:

5/0

Hope it will help you

Answer 2

Solution :-

we know that,

• A number which can be written in the form of p/q where p and q are integers and q is not equal to 0 is a rational number .

So, checking given options we get,

(a) 0/5

→ p = 0

→ q = 5

since both p and q are integers and q is not equal to 0 . Therefore it is a rational number .

(b) 0/-5

→ p = 0

→ q = -5

since both p and q are integers and q is not equal to 0 . Therefore it is a rational number .

(c) 5/0

→ p = 5

→ q = 0

since both p and q are integers but q is equal to 0 . Therefore it is not a rational number .

(d) -1

→ -1 = -1/1

→ p = -1

→ q = 1

since both p and q are integers and q is not equal to 0 . Therefore it is a rational number .

Hence, Option (c) 5/0 is not a rational number .

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