(10 Data Sets, 50 Questions)

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📊 DATA SET 1 — Table: Student Enrollment (2019–2023)

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Questions

1. In which year was total enrollment highest?

2. Average Science enrollment (2019–2023)?

3. % increase in Commerce students from 2019 to 2023?

4. Ratio of Arts to Science students in 2023?

5. By how many did total enrollment increase from 2019 to 2023?

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Answers

1. 2023 (1010 – highest total)

2. $(250+270+300+330+360)\mathrm{/}5=302$

3. $(250\text{–}150)\mathrm{/}150\times 100=66.7\mathrm{\%}$

4. $400:360=10:9$

5. $1010\text{–}700=310$

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🥧 DATA SET 2 — Pie Chart: Expenditure of a Company (Total ₹12 lakh)

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Questions

1. Expenditure on Raw Material = ?

2. Combined % on Marketing + Miscellaneous = ?

3. How much more spent on Salaries than on Rent?

4. What is the angle of the Raw Material sector?

5. If total increased by 10% next year, what will be Marketing expenditure?

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Answers

1. 25% of 12,00,000 = ₹3,00,000

2. 10 + 10 = 20%

3. (40–15)% of 12,00,000 = 25% = ₹3,00,000

4. $(25\mathrm{/}100)\times 360\mathrm{°}=90\mathrm{°}$

5. New total = 13,20,000 → 10% = ₹1,32,000

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📈 DATA SET 3 — Line Graph: Sales of Product A & B (in ₹ Lakh)

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Questions

1. In which year was the difference between A and B sales maximum?

2. Average sales of Product B?

3. % increase in A’s sales from 2018 to 2022?

4. Ratio of A:B in 2020?

5. In how many years did Product B sales exceed A?

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Answers

1. 2018 → |25–20|=5; 2021 → |40–35|=5; 2022 → |45–40|=5 → Equal max difference = 5 lakh

2. (25+30+28+35+40)/5 = 31.6 lakh

3. $(45\text{–}20)\mathrm{/}20\times 100=125\mathrm{\%}$

4. 30:28 = 15:14

5. 3 years (2018–2020)

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🧮 DATA SET 4 — Table: University Results

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Questions

1. Overall pass % of the university?

2. Highest pass % subject?

3. Total failed students in all subjects?

4. Average pass % across subjects?

5. Ratio of passed to failed in History?

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Answers

1. Total pass = 340+210+280+230+160=1220; total =1500 → 1220/1500×100=81.3%

2. Sociology → 230/250=92%

3. 60+90+70+20+40=280

4. (85+70+80+92+80)/5 = 81.4%

5. 210:90 = 7:3

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📊 DATA SET 5 — Bar Graph: Books Sold by a Publisher

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Questions

1. % share of Fiction books?

2. Ratio of Children to Reference books?

3. Difference between Fiction and Non-fiction books?

4. If total books = 3500, find % of Others.

5. Total books in all genres except Fiction?

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Answers

1. $1200\mathrm{/}3500\times 100=34.3\mathrm{\%}$

2. 600:300 = 2:1

3. 1200–900 = 300

4. $500\mathrm{/}3500\times 100=14.3\mathrm{\%}$

5. 3500–1200 = 2300

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📈 DATA SET 6 — Table: Imports & Exports (₹ Crore)

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Questions

1. In which year was trade deficit (Import–Export) highest?

2. Average exports (2018–2022)?

3. % increase in imports from 2018 to 2022?

4. Year with trade surplus?

5. Ratio of total imports to total exports.

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Answers

1. 2022 → 800–700=100 (highest deficit)

2. (400+450+600+620+700)/5 = 554 crore

3. $(800\text{–}500)\mathrm{/}500\times 100=60\mathrm{\%}$

4. None (all imports > exports)

5. (500+600+700+650+800):(400+450+600+620+700)=3250:2770 ≈ 1.17:1

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🧾 DATA SET 7 — Caselet: Newspaper Readership

A survey of 1,000 people showed:

• 400 read The Times

• 300 read The Herald

• 200 read The Voice

• 150 read both Times and Herald

• 50 read all three papers

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Questions

1. How many read both Times and Voice but not Herald (if 90 read both Times & Voice)?

2. How many read at least one newspaper?

3. How many read none?

4. How many read only The Herald?

5. How many read exactly two newspapers?

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Answers

Let universal set = 1000.
Using set theory:

1. Times∩Voice only = 90–50 = 40

2. At least one = Total – None; find later.
   (T+H+V) – (T∩H + T∩V + H∩V) + All three = (400+300+200)–(150+90+?)+50. Assuming H∩V = 70.
   = 900–310+50=640.
   So 640 read ≥1.

3. None = 1000–640=360

4. Herald only = 300–150–70+50=130.

5. Exactly two = (150+90+70) – 3×50 = 160

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📊 DATA SET 8 — Pie Chart: Sources of Electricity Generation

Total output = 10,000 MW.

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Questions

1. MW generated by Nuclear power?

2. Combined contribution of renewable (Solar + Wind)?

3. Thermal power generation in MW?

4. What angle represents Hydro power?

5. Ratio of Hydro : Nuclear power.

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Answers

1. 15% × 10,000 = 1500 MW

2. (10+10)% = 20% = 2000 MW

3. 40% × 10,000 = 4000 MW

4. $(25\mathrm{/}100)\times 360=90\mathrm{°}$

5. 25:15 = 5:3

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📉 DATA SET 9 — Line Graph: Students in Two Universities

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Questions

1. Growth % of University X (2018–2022)?

2. Average students in University Y?

3. Difference in 2020 student count between X and Y?

4. Year when total enrollment (X+Y) crossed 30,000?

5. Ratio of X:Y in 2022?

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Answers

1. $(20,000\text{–}12,000)\mathrm{/}12,000\times 100=66.7\mathrm{\%}$

2. (10,000+11,500+13,000+15,000+16,000)/5 = 13,100

3. 16,000–13,000 = 3,000

4. 2020 (16k+13k=29k <30k); 2021 (33k >30k) → 2021

5. 20,000:16,000 = 5:4

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📊 DATA SET 10 — Table: GDP (Sector-wise, ₹ crore)

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Questions

1. Which sector grew most (2018–2022)?

2. Share of Services sector in 2022 GDP?

3. Average Industry output (all years)?

4. % growth of total GDP (2018–2022)?

5. Ratio of Agriculture to Total GDP in 2022?

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Answers

1. Agriculture: +80; Industry: +120; Services: +200 → Services

2. 700/1400×100 = 50%

3. (300+350+370+390+420)/5 = 366 crore

4. (1400–1000)/1000×100 = 40%

5. 280:1400 = 1:5