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Tables and Structured Data PYQs for GATE CS

Solve 2+ Tables and Structured Data previous year questions for GATE CS with answers and detailed solutions. Free sample questions below.

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Question 1

2025 Slot Set2 PYQ

Level 3: Exam Standard

Which one of the following options is correct for the given data in the table? Iteration (i) 0123 Input (I) 20 -4 1015 Output (X) 20162641 Output (Y) 20 -80 -800 -12000

Question 2

2021 Slot Set1 PYQ

Level 3: Exam Standard

Items Cost (₹) Profit % Marked Price (₹) P 5,400 --- 5,860 Q --- 25 10,000 Details of prices of two items P and Q are presented in the above table. The ratio of cost of item P to cost of item Q is 3:4. Discount is calculated as the difference between the marked price and the selling price. The profit percentage is calculated as the ratio of the difference between selling price and cost, to the cost (Profit % = \frac{Selling price - Cost}{Cost} \times 100) . The discount on item Q, as a percentage of its marked price, is ______

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Tables and Structured Data PYQs for GATE CS

Solve 2+ Tables and Structured Data previous year questions for GATE CS with answers and detailed solutions. Free sample questions below.

Chapter Roadmap: Data Interpretation — Tables and Structured Data

Chapter Roadmap: Tables and Structured Data

Topic 1: Commercial Tables and Percentage Calculations

Master cost price, selling price, marked price, profit and loss percentages, and discounts within tabular formats. Learn to handle missing values using ratios and basic algebra.

Weightage Hint: Foundational and High Frequency

Topic 2: Recurrence Patterns in Tabular Data

Identify arithmetic, geometric, or other logical sequences within rows and columns. Predict missing values based on observed patterns.

Weightage Hint: Logical Reasoning Focus

By the end of this chapter, you will be able to:

Extract and compute financial metrics from complex tables.
Solve for missing entries using proportional reasoning.
Detect and extend numerical patterns in structured data.

The Anatomy of a Commercial Table

Commercial tables organize transactional data. Each row represents an item or entity, and columns represent financial attributes.

Key Terms

Cost Price (CP): The original purchase price.
Selling Price (SP): The final price at which the item is sold.
Marked Price (MP): The price tagged on the item before any discount.
Profit: $S P - C P$ (when $S P > C P$ )
Loss: $C P - S P$ (when $C P > S P$ )
Discount: $M P - S P$

Core Relationships

S P = C P + Profit

S P = M P - Discount

Profit % = \frac{Profit}{C P} \times 100

Discount % = \frac{Discount}{M P} \times 100

In exam questions, not all values are provided. You must use these relationships to find missing entries.

Tables and Structured Data: Solved Questions with Step-by-Step Explanations (2 Problems)

Question 1 · Quantitative Aptitude · 2025_Set2 MCQ

Which one of the following options is correct for the given data in the table?

i

)0123Input (

I

)20−41015Output (

X

)20162641Output (

Y

)20−80−800−12000

A.
$X (i) = X (i - 1) + I (i); Y (i) = Y (i - 1) I (i); i > 0$
B.
$X (i) = X (i - 1) I (i); Y (i) = Y (i - 1) + I (i); i > 0$
C.
$X (i) = X (i - 1) I (i); Y (i) = Y (i - 1) I (i); i > 0$
D.
$X (i) = X (i - 1) + I (i); Y (i) = Y (i - 1) I (i - 1); i > 0$

Correct Answer:

Step-by-Step Solution

Insight: Test the given recurrence relations step-by-step for $i = 1$ and $i = 2$ using the table values to eliminate incorrect options.

Exam route: For $i = 1$ , $X (1) = X (0) + I (1) = 20 + (- 4) = 16$ . $Y (1) = Y (0) \times I (1) = 20 \times (- 4) = - 80$ . This matches Option A. Verify for $i = 2$ : $X (2) = 16 + 10 = 26$ , $Y (2) = - 80 \times 10 = - 800$ . Matches perfectly.

Learning route:

Observe the table: We have sequences for Input $I$ , Output $X$ , and Output $Y$ over iterations $i = 0, 1, 2, 3$ .
Test Option A for $i = 1$ :

$X (1) = 20 + (- 4) = 16$ . (Matches table)

$Y (1) = 20 \times (- 4) = - 80$ . (Matches table)

Test Option A for $i = 2$ :

$X (2) = 16 + 10 = 26$ . (Matches table)

$Y (2) = - 80 \times 10 = - 800$ . (Matches table)

Test Option A for $i = 3$ :

$X (3) = 26 + 15 = 41$ . (Matches table)

$Y (3) = - 800 \times 15 = - 12000$ . (Matches table)

Conclusion: Option A is the only recurrence relation that consistently reproduces the table's values.

Question 2 · Quantitative Aptitude · 2021_Set1 MCQ

Items	Cost (₹)	Profit %	Marked Price (₹)
P	5,400	---	5,860
Q	---	25	10,000

Details of prices of two items P and Q are presented in the above table. The ratio of cost of item P to cost of item Q is 3:4. Discount is calculated as the difference between the marked price and the selling price. The profit percentage is calculated as the ratio of the difference between selling price and cost, to the cost

(Profit % = \frac{Selling price - Cost}{Cost} \times 100)

.

The discount on item Q, as a percentage of its marked price, is ______

A.
25
B.
12.5
C.
10
D.
5

Correct Answer:

Step-by-Step Solution

Insight: The cost price of Q can be derived from the given ratio with P's cost price, then selling price follows from the profit percentage, and finally the discount percentage is calculated from the marked price.

Exam route: CP_Q = 5400 (4/3) = 7200. SP_Q = 7200 1.25 = 9000. Discount = 10000 - 9000 = 1000. Discount % = (1000 / 10000) * 100 = 10%.

Learning route:

Identify knowns: CP_P = 5400, and the ratio CP_P : CP_Q = 3 : 4.
Calculate CP_Q: Since 3 parts = 5400, 1 part = 1800. Thus, CP_Q = 4 * 1800 = 7200.
Use Profit % for Q (25%) to find SP_Q: SP_Q = CP_Q (1 + 25/100) = 7200 1.25 = 9000.
Use MP_Q (10000) to find the absolute Discount: Discount = MP_Q - SP_Q = 10000 - 9000 = 1000.
Calculate Discount %: The base for discount percentage is always the Marked Price. So, (1000 / 10000) * 100 = 10%.

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Login to view the complete previous-year questions and solutions

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Built around you, not around a syllabus PDF

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Questions calibrated to the real exam

Notes written for recall, not for volume

One place for everything

Honest progress

Unlock the whole course

Tables and Structured Data PYQs for GATE CS

Chapter Roadmap: Data Interpretation — Tables and Structured Data

Chapter Roadmap: Tables and Structured Data

Topic 1: Commercial Tables and Percentage Calculations

Topic 2: Recurrence Patterns in Tabular Data

The Anatomy of a Commercial Table

The Anatomy of a Commercial Table

Key Terms

Core Relationships

Tables and Structured Data: Solved Questions with Step-by-Step Explanations (2 Problems)

Step-by-Step Solution

Step-by-Step Solution

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