Which number is an irrational number?
2.56

is Irrational No.

Step-by-step explanation:

Irrational nos are no which can not be written in form and also decimal expansion of it is non terminating non repeating.

Option 1:

and are rational nos.

Thus, This is Rational No.

Option 2:

, this is already in form.

Thus, This is a Rational No.

Option 3:

Decimal expansion of is non terminating non repeating

⇒ Decimal expansion of is also non terminating non repeating.

Thus, This is a irrational No.

you never say the total so we cant find the percentage used for petrol

step-by-step explanation: