Question

2.56 bar is rational or irrational

Answer 1

Answer:

Ans: 7.48 bar is a rational number.

Any number which can be expressed in the form P/Q, where P & Q are integers & Q in not zero, is a rational number.

Let X = 7.48 bar.

X = 7.48484848…..

100 X = 748.484848….

100 X - X = 748.4848… - 7.4848…

99X = 741.

X = 741 / 99.

X can be expressed in form P/Q.

X is rational number. Hence the proof.