Pre-assessment | CBSE | G10 | C.1 Real Numbers

Which of the following is not a Rational Number?

• 3.15

• 27.868686...

• 0.030030003...

The decimal expansion of an Irrational Number is

• Terminating

• Neither terminating, nor recurring

• Non-terminating, but recurring

• None of these

• Closure property

• Commutative property

• Associative property

• Distributive property

Find the odd one out:

• Natural Numbers

• Whole Numbers

• Rational Numbers

• Irrational Numbers

Answer explanation

Natural Numbers and Whole Numbers are the part of Rational Numbers.

Hence, Natural Numbers, Whole Numbers and Rational Numbers belong to the same family whereas Irrational Numbers doesn't.

To obtain a terminating decimal expansion, the denominator of the Rational Number must be in the form

Integers are denoted by the letter

(a)  

Answer explanation

In Deutsch (German language) the word 'Zahlen' means Numbers. The initials of the word is used for denoting Integers.

• True

• False

Is 0 a Rational Number?

• Yes

• No

• Closure property

• Commutative property

• Associative property

• Distributive property