Class 8 Mathematics — Chapter 8: Fractions in Disguise
72 practice questions · 24 Easy · 24 Medium · 24 Hard
Practise the most important Class 8 Mathematics questions from Chapter 8, "Fractions in Disguise" — 72 NCERT-aligned multiple-choice questions with answers and explanations. The set is split into 24 Easy, 24 Medium and 24 Hard, so you can warm up on the fundamentals and then push into the exam-level problems that separate top scorers in CBSE Board exams.
"Fractions in Disguise" is one of the chapters where problem-solving speed, formula recall and step-by-step reasoning really pays off. Each MCQ on this chapter is timed and uses exam-grade marking (+4 correct, −1 wrong, 0 skipped), training the same negative-marking accuracy-under-pressure that real papers demand. Every question carries a short explanation, so a wrong answer becomes a quick lesson rather than a dead end — the fastest way to close gaps before a test.
Use this chapter as targeted revision: attempt the Easy set first to confirm your basics on Fractions in Disguise, then move to Medium and Hard to test application and problem-solving. Your accuracy, streaks and XP save automatically, and the chapter feeds into your overall Class 8 Mathematics mastery score. A sample question is shown below; sign in free to see its answer and practise all 72.
Key concepts: Fractions in Disguise (Class 8 Mathematics)
This chapter shows that a percentage is just a fraction in disguise — a number out of hundred. You convert freely between percentages, fractions and decimals, find a percentage of a quantity, and express one quantity as a percentage of another. These skills power the real-world uses of percentages: percentage increase and decrease, profit and loss on the cost price, discount on the marked price, and simple interest on a sum of money.
- Per cent
- 'Per cent' means 'out of hundred', so x% is the fraction x/100. 25% means 25 out of every 100.
- Percentage, fraction, decimal
- The same value in three forms: 25% = 25/100 = 1/4 = 0.25. Divide by 100 to make a decimal; multiply by 100 to make a percentage.
- Percentage of a quantity
- To find p% of an amount, multiply the amount by p/100: 20% of 150 = (20/100) × 150 = 30.
- One quantity as a percentage of another
- Express the part as a fraction of the whole and multiply by 100: 45 out of 50 = (45/50) × 100 = 90%.
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Start this chapter free →Fractions in Disguise — FAQs
What are the key concepts in Class 8 Mathematics Fractions in Disguise?+
This chapter shows that a percentage is just a fraction in disguise — a number out of hundred. You convert freely between percentages, fractions and decimals, find a percentage of a quantity, and express one quantity as a percentage of another. These skills power the real-world uses of percentages: percentage increase and decrease, profit and loss on the cost price, discount on the marked price, and simple interest on a sum of money. Key ideas include Per cent, Percentage, fraction, decimal, Percentage of a quantity, One quantity as a percentage of another.
What does Class 8 Mathematics Chapter 8 (Fractions in Disguise) cover on XamBaaz?+
It covers 72 NCERT-aligned MCQs on "Fractions in Disguise" — 24 Easy, 24 Medium and 24 Hard — each with a timed quiz and an instant explanation, suitable for CBSE Board exams.
Are these "Fractions in Disguise" questions free to practise?+
Yes — sign in with Google to practise "Fractions in Disguise" free. Full unlimited access is ₹999/year (limited-time launch price), with no per-chapter charges.
How should I revise "Fractions in Disguise" for the exam?+
Start with the Easy quiz to confirm your fundamentals, then attempt Medium and Hard for application-level practice. Review each explanation, retry the questions you miss, and track your accuracy on this chapter until it is consistently high.
Are these "Fractions in Disguise" MCQs available with answers?+
Yes. This page shows one sample question so you can see the format; sign in free with Google to reveal the correct option and a step-by-step "Why" explanation for it, then practise all 72 questions with instant scoring.
Is there negative marking in the "Fractions in Disguise" quizzes?+
Yes — the timed quizzes use exam-grade marking: +4 for a correct answer, −1 for a wrong one and 0 for a skipped question, so you practise the same negative-marking discipline as CBSE Board exams.
Are these important questions for Fractions in Disguise?+
The set is curated to the NCERT syllabus and weighted toward the question patterns that actually appear in CBSE Board exams, across Easy, Medium and Hard — so it doubles as an "important questions" revision list for "Fractions in Disguise".