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Class 8 Mathematics — Chapter 1: Rational Numbers

10 practice questions · 3 Easy · 4 Medium · 3 Hard

Free NCERT-aligned multiple-choice practice for Class 8 Mathematics, Chapter 1 (Rational Numbers). Practise timed Easy, Medium and Hard quizzes with instant explanations — built for CBSE Board exams, JEE Main and NEET UG. Here are a few sample questions; sign in free to practise all 10.

Sample questions

Q1Easy

The additive inverse of −3/7 is:

A.3/7✓ correct
B.−7/3
C.7/3
D.−3/7
Why

Additive inverse of x is −x. So additive inverse of −3/7 is 3/7.

Q2Medium

A rational number that lies between 1/3 and 1/2 is:

A.5/12✓ correct
B.2/3
C.1/4
D.3/4
Why

1/3 = 4/12 and 1/2 = 6/12. So 5/12 lies strictly between them.

Q3Hard

The product of two rational numbers is −16/9. If one of them is −4/3, the other is:

A.4/3✓ correct
B.−4/3
C.3/4
D.−3/4
Why

Other = (−16/9) ÷ (−4/3) = (−16/9) × (−3/4) = 4/3.

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