Comparing Quantities — Class 8 MCQs with Answers
Class 8 CBSE Mathematics · Chapter 107
Pre-2026 syllabusThis chapter is from the older NCERT book. See the 2026-27 Class 8 Mathematics chapters →
72 practice questions · 24 Easy · 24 Medium · 24 Hard · Updated
Jump to the 6 solved questions
Practise the most important Class 8 CBSE Mathematics questions from Chapter 107, "Comparing Quantities". You get 9 timed quizzes made from 72 NCERT-based MCQs, with answers and explanations. The questions are split into 24 Easy, 24 Medium and 24 Hard. Warm up on the basics, then move on to the exam-level questions that top scorers in CBSE Board exams get right.
To score well in "Comparing Quantities", focus on fast problem-solving, formula recall and step-by-step working. Each MCQ here is timed and uses exam-style marking (+4 correct, −1 wrong, 0 skipped). This helps you stay accurate when time is short, just as real papers need. Every question has a short explanation, so a wrong answer becomes a quick lesson. It is the fastest way to fix gaps before a test.
Use this chapter for focused revision. Start with the Easy set to check your basics on Comparing Quantities, then move to Medium and Hard to practise applying them. Your accuracy, streaks and XP save automatically. This chapter also adds to your overall Class 8 Mathematics mastery score. Try the 6 sample questions below: tap an option to see the answer and a worked explanation. Sign in free to start practising.
Comparing Quantities — important questions & MCQs with answers (Class 8 Mathematics)
6 solved questions from this chapter's difficulty levels, each with its answer and explanation. Tap an option to check yourself.
0 of 6 answered
- Q1 of 6Easy
20% of 200:
Show answerHide answer
Answer: 40
Explanation: 0.20 × 200 = 40.
- Q2 of 6Easy
Simple interest formula:
Show answerHide answer
Answer: PRT/100
Explanation: Standard SI formula.
- Q3 of 6Medium
Marked price ₹500, discount 10%. Sale price:
Show answerHide answer
Answer: ₹450
Explanation: 500 − 50 = 450.
- Q4 of 6Medium
CI on ₹1000 at 10% p.a. for 2 years compounded annually:
Show answerHide answer
Answer: ₹210
Explanation: Amount = 1000(1.1)² = 1210; CI = 210.
- Q5 of 6Hard
CP ₹400, SP ₹500. Profit %:
Show answerHide answer
Answer: 25%
Explanation: Profit = 100; %=100/400×100=25.
- Q6 of 6Hard
Compound amount formula:
Show answerHide answer
Answer: A = P(1 + R/100)ⁿ
Explanation: Standard CI formula.
Comparing Quantities notes: key concepts (Class 8 Mathematics)
This chapter covers percentages, profit and loss, discount, taxes, and simple and compound interest.
- Percentage
- A ratio expressed out of 100; used to compare quantities and express increase or decrease.
- Profit, loss & discount
- Profit/loss is found on the cost price; discount is a reduction on the marked price.
- Sales tax / VAT / GST
- A tax added to the selling price, calculated as a percentage of it.
- Simple interest
- Interest calculated only on the original principal: SI = PRT/100.
- Compound interest
- Interest on the principal plus accumulated interest; the amount grows by A = P(1 + R/100)ⁿ.
Start this chapter free
You have 6 to try above. Sign in with Google (no card needed). You get 1 Easy + 1 Medium quiz on every chapter, free for good (up to 6 quizzes a day) — plus a free Hard quiz when you score 70%+ on a Medium quiz (1 per subject), and the formulas & exam tips.
This chapter has 72 questions (24 Easy · 24 Medium · 24 Hard), with timed scoring and instant feedback. The rest unlock with the ₹999/year plan.
Start with the questions above. The full quiz opens here after.
Comparing Quantities — FAQs
What are the key concepts in Class 8 Mathematics Comparing Quantities?+
This chapter covers percentages, profit and loss, discount, taxes, and simple and compound interest. Key ideas include Percentage, Profit, loss & discount, Sales tax / VAT / GST, Simple interest, Compound interest.
What does Class 8 Mathematics Chapter 107 (Comparing Quantities) cover on XamBaaz?+
It has 72 NCERT-based MCQs on "Comparing Quantities": 24 Easy, 24 Medium and 24 Hard. Together they make 9 timed quizzes, and you never get the same set twice. Every question has an instant explanation. They help you prepare for CBSE Board exams.
Are these "Comparing Quantities" questions free to practise?+
Yes. Sign in with Google to practise "Comparing Quantities" free. Full unlimited access is ₹999/year. One year from the day you pay. You stay in Class 8 till 31 March; on 1 April your account moves up to Class 9 and the rest of your year carries over. No chapter is charged separately.
How should I revise "Comparing Quantities" for the exam?+
Start with the Easy quiz to check your basics, then try Medium and Hard to practise applying them. There are 9 timed quizzes on this chapter, so you can come back for a fresh set instead of one you have seen. Read each explanation, retry the questions you miss, and track your accuracy until it stays high.
Are these "Comparing Quantities" MCQs available with answers?+
Yes. 6 sample questions are on this page with answers: tap an option, or "Show answer", to see the correct option and a step-by-step explanation. Sign in free with Google to start practising, with instant scoring.
Is there negative marking in the "Comparing Quantities" quizzes?+
Yes. The timed quizzes use exam-style marking: +4 for a right answer, −1 for a wrong one and 0 for a skip. MHT-CET and CBSE board papers have no negative marking. Our mocks for those are scored their way.
What are the important questions from Comparing Quantities (Class 8 Mathematics)?+
The questions that matter most test Percentage, Profit, loss & discount, Sales tax / VAT / GST, Simple interest, Compound interest. This page shows 6 solved important MCQs with answers and explanations. Sign in to practise all 72 questions on the chapter as timed quizzes.
Is there an online quiz for Comparing Quantities?+
Yes — Class 8 Mathematics Comparing Quantities has timed online quizzes at Easy, Medium and Hard levels, with instant scoring and a worked explanation on every question. The first quiz on the chapter is free.
Are there question answers and extra questions for Comparing Quantities (Class 8 Mathematics)?+
Yes. This page has 6 solved questions on Comparing Quantities, each with the correct answer and a short explanation. Sign in to practise all 72 questions on the chapter as timed quizzes.