Question

Out of the following is irrational number is:
(a) 1.5 (b) 2.47 (c) 1.27 (d) 22/7

Answer 1

Answer:

option d

Step-by-step explanation:

option d is 22/7 which is pie and it will always be a irrational number

Answer 2

Answer:

(d) 22/7

Step-by-step explanation:

Given:- Given numbers are 1.5, 2.47, 1.27, 22/7

To Find:- Irrational number among the given options.

Solution:-

Irrational numbers are known as the set of real numbers which cannot be expressed in the form of a fraction i.e. p/q where p and q are integers.

(a) 1.5 - This is terminating. So it's a rational number.

(b) 2.47 - This is also terminating, hence rational number.

(c) 1.27 - Rational number as it is terminating.

(d) 22/7 - It is the value of pi(π). In decimal form, the value of pi is approximately 3.141592653589793238....., which is non-terminating and also non-repeating. Therefore, it is an irrational number.

The correct option is (d) 22/7 is an Irrational number.

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