Rational Numbers
17 solved questions from Class 8 Mathematics, each with the full working. Tap any question to see the step-by-step solution.
- 1 Rahul bought a ribbon of total length 121/2 m. He cut off 33/4 m to use for his art project and divided the remaining ribbon equally among 5 of his friends. How many metres of ribbon did each friend receive? hard 5 marks Operations on Rational Numbers in Word Problems
- 2 What is the multiplicative inverse of -13/19? easy MCQ 1 mark Multiplicative Inverse of Rational Numbers
- 3 Find the HCF of 24 and 36 using prime factorisation. medium MCQ Prime Factorisation and HCF
- 4 Express 140 as a product of its prime factors. medium MCQ Prime Factorisation
- 5 Is √2 a rational or irrational number? medium MCQ Irrational Numbers
- 6 What is the LCM of 12 and 15? medium MCQ LCM Calculation
- 7 Find the value of 5³ × 5² using exponent laws. medium MCQ Exponents and Powers
- 8 What is the multiplicative inverse of -4/5? medium MCQ Rational Numbers
- 9 Evaluate (-1)^100. medium MCQ Exponents
- 10 Is zero (0) a positive or negative integer? medium MCQ Integers
- 11 Simplify: 3/4 + 5/6. medium MCQ Fractions Addition
- 12 What is the predecessor of 10,000? medium MCQ Predecessor and Successor
- 13 What is the domain, range, or fundamental theorem introduced in 'Rational Numbers' (Class 8 Mathematics)? medium MCQ Functions & Theorems
- 14 What is the derivative or integral formula associated with 'Rational Numbers'? medium MCQ Calculus & Formulae
- 15 How do you find the solution set or optimum value in 'Rational Numbers'? medium MCQ Problem Solving & Optimization
- 16 Find the sum of -5/9 and 7/12. easy 3 marks addition of rational numbers
- 17 Simplify 3-2/51/4+3/8. hard 5 marks division of rational numbers