Quantitative Aptitude SSC GD, SSC quantitative aptitude Free access now

Ratio and Proportion for SSC GD | Concepts & Practice | SSC GD Quantitative Aptitude

Build Ratio and Proportion accuracy for SSC GD with concept clarity, key relations, exam-speed methods and approved practice.

Tailored for SSC GD Quantitative Aptitude. 4 active practice questions. Related topics: Percentage, Profit and Loss, Simple Interest.

SSC GD approach: For SSC GD, keep this topic practical and direct. The target is to recognise familiar patterns quickly and apply the shortest reliable method without creating extra working.

What to master: Master the basic rule, repeat high-frequency patterns, and practise small timed sets where the same concept appears in more than one surface form.

SSC GD focus:

Keep the method simple and dependable for SSC GD, with emphasis on fast recognition and basic exam-ready accuracy.

Attempt strategy: For SSC GD, prefer the shortest clear method, avoid over-solving, and practise recognising familiar patterns without sacrificing accuracy.

Revision path: GD revision: core rule -> easy pattern -> speed drill -> quick correction.

SSC GD exam emphasis for Ratio and Proportion

GD emphasis: clarity, rapid recognition, direct working, and dependable accuracy.

Most important error to avoid

Typical GD loss comes from overthinking a simple pattern, skipping a basic check, or using a longer process when a direct rule would solve the question.

SSC GD Ratio and Proportion — SSC GD study plan

Connect Ratio and Proportion to the objective-question workflow used in SSC GD: recognise the concept, choose a clean method, solve, and verify.

How to practise this topic

Use a short progression from direct examples to mixed timed practice, increasing complexity only after accuracy is stable.

Mistakes to remove before the next set

Classify each error as concept, reading, calculation, grammar, or time-management related and correct the exact cause before repeating the set.

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Medium

Medium weightage

4 practice questions

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Learn the shortcut

Understand the fastest pattern for this topic before you attempt full MCQs.

Avoid common traps

See where students commonly lose marks so you can eliminate bad options earlier.

Solve faster in exam

Apply one practical method before attempting MCQs and cut down hesitation.

Summary Formula Tricks Mistakes Solved Example Practice FAQ

Ratio and Proportion revision for SSC GD: understand the base rule, apply the correct formula or relation, check common traps, then practise with approved questions.

Ratio compares quantities of the same kind; proportion states that two ratios are equal. Simplify ratios before using them and ensure quantities are in compatible units.

SSC GD focus: Solve the core method first, then use the approved practice questions on this page to build exam-speed accuracy.

Ratio and Proportion revision rule: concept → formula/relation → one worked example → timed practice → error review.

Core concept
Key formula/relation
Common trap
Approved practice

a:b = a/b
a:b = c:d ⇒ ad=bc
If total T is divided in a:b, shares are aT/(a+b) and bT/(a+b)

For chained ratios, equalise the common term before combining the ratios.

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SSC GD: Practise this concept with SSC GD-style questions.

Solve topic-wise questions, measure accuracy, identify weak areas, and prepare for mock tests faster with a sharper revision flow.

Topic-wise practice built around this concept
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Practice Questions Login for free progress tracking

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You can start learning here right away, explore formulas and tricks, and use the current limited practice flow before premium tools arrive.

Read the exact requirement before choosing a shortcut.
Keep units, signs and percentage bases consistent.
Use the final few seconds to verify direction and magnitude.

Using a memorised shortcut without checking its condition.
Skipping unit or base conversion.
Doing long arithmetic before identifying the underlying relation.

SSC GD practice example: Two quantities are in the ratio 3:5 and their total is 64. One part is 64 ÷ 8 = 8, so the quantities are 24 and 40.

The incomes of A and B are in the ratio 9:7. If A earns Rs. 4000 more than B, what is B's income?
If a:b=4:7 and b:c=14:15, what is a:c?
If p:q=5:8 and q:r=12:7, what is p:r?

Learn the shortcut first

Shortcut before you solve

Most ratio questions become shorter once you reduce both sides to the smallest form.

Faster solving steps

Use this 4-step method before solving to keep your thinking fast and repeatable.

Step 1 Identify relation

Spot the pattern, relationship, or core idea first.

Step 2 Apply same pattern

Use the same rule instead of re-solving from scratch.

Step 3 Eliminate wrong options

Remove confusing choices before comparing the last few.

Step 4 Confirm final answer

Pick the option that matches the shortcut most cleanly.

Practice Questions

Start with the first 10 questions free, then unlock the rest with premium

Now apply the trick on real questions

Use the shortcut above before solving these questions

Reduce the ratio first, then scale both sides by the same multiplier.

Tip: If two ratios are proportional, their cross products are equal.

Step 1

3 : 5 means the second number is 4 times the first ratio part.

Step 2

Since 5 becomes 20, multiply 3 by 4 as well.

Rule

In proportion, both terms must be scaled by the same number.

3-second trick

See how one side changed, then apply the same multiplier to the matching term.

Trap to avoid

Do not change only one term of the ratio and leave the other unmatched.

Correct answer

Thinking path

5 becomes 20, so the multiplier is 4.
Multiply 3 by 4.
The missing value is 12.

Final answer: 12

Why this is fast: Scaling is faster than writing a full proportion equation every time.

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Q1 Medium

If a:b=7:9 and b:c=3:5, what is a:c?

Concept type: Equivalent ratio comparison Shortcut used: Reduce the ratio first, then scale both sides by the same multiplier. Quick hint: If two ratios are proportional, their cross products are equal.

Quick idea: The ratio a:c is 7:15.

Solve

Q2 Medium

If p:q=5:8 and q:r=12:7, what is p:r?

Quick idea: The ratio p:r is 15:14.

Solve

Q3 Medium

If a:b=4:7 and b:c=14:15, what is a:c?

Quick idea: The ratio a:c is 8:15.

Solve

Q4 Medium

The incomes of A and B are in the ratio 9:7. If A earns Rs. 4000 more than B, what is B's income?

Quick idea: B's income is Rs. 14000.

Solve

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