Question

. Which of the following is a rational number? खालीलपैकी कोणती संख्या परिमेय संख्या आहे ? *

√7

√25

√25/5

√7/2

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Answer 1

Answer:

rational number = √ 7/2.

The number which is in form of P/ q , where q is not equal to zero.

√ 7, √25 , √ 25/5= √5 are not rational number.

Answer 2

b.$\sqrt{25}$ and c. $\frac{\sqrt{25} }{5}$ are the rational number.

Step-by-step explanation:

A rational number is a number that is expressed as the fraction  of integers, a numerator p and a non zero denominator q.

From the given option,

$\sqrt{7}$ is an irrational number.

$\sqrt{25}=5$

5 is a rational number.5 can be written in the form of a fraction $\frac{5}{1}$  .

$\sqrt{25}$  is also a rational number.

 $\frac{\sqrt{25} }{5}=\frac{5}{5}=1$

1 is a rational number because 1 is a natural number, a perfect square, a perfect cube and an integer.

 $\frac{\sqrt{25} }{5}$ is also a rational number.

$\sqrt{7}$ is the irrational number

$\frac{\sqrt{7} }{2}$ is the irrational number.