Question

# Which of the following is a rational number?

A

2

No worries! We‘ve got your back. Try BYJU‘S free classes today!
B

π

No worries! We‘ve got your back. Try BYJU‘S free classes today!
C

20

No worries! We‘ve got your back. Try BYJU‘S free classes today!
D

4.8

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
Open in App
Solution

## The correct option is B 4.8 A rational number can be written in the form of pq where p and q are integers and q is not equal to zero. Rational numbers have their decimal expansions as either terminating or non-terminating but recurring. π = 3.14159265358..., i.e., the digits after decimal point do not terminate and not recurring. Hence it is not rational √2 is approximated to 1.414213562373095..., i.e., it cannot be expressed as a recurring and non-terminating decimal and hence is not rational. 20 is not defined and for a rational number, the denominator should be non-zero. 4.8 on the other hand, satisfies all the properties of rational numbers.

Suggest Corrections
0
Related Videos
Introduction to Number Systems
MATHEMATICS
Watch in App
Explore more