Data Interpretation: Tables, Charts & Relational Logic
Sa Data Interpretation at Relational Logic Puzzles, nasa harap mo na mismo ang lahat ng datos—kailangan mo lang malaman kung aling row, column, o porsyento ang titingnan at kung paano mag-compute nang walang pagkakamali.
- Mabasa nang mabilis ang Data Tables, Bar Charts, at Pie/Donut Charts sa pamamagitan ng pag-check muna sa Title, Units, at Totals.
- Makapag-compute nang tumpak ng Percentage Share of Total at Percentage Growth Rate: ((New − Old) ÷ Old) × 100%.
- Maiwasan ang pinakamadalas na bitag sa Data Interpretation: ang pagkalito sa Raw Increase (bilang) vs. Percentage Increase (%).
- Malutas ang Relational Ranking at Line-Ordering puzzles gamit ang visual Inequality Line (< / >).
Data Tables & Bar Charts: Raw Difference vs. Percentage Growth
Bakit laging ang OLD (Original) value ang nasa ibaba kapag kumukuha ng Percentage Change?
Bago mag-compute sa anumang table o chart, tingnan muna ang: (1) Pamagat at Units (hal. in thousands o in percent), at (2) ang Question Stem (tinatanong ba ay actual number o percentage growth?).
Data Interpretation Essential Formulas
% Growth = ((New − Old) ÷ Old) × 100% | % Share = (Part ÷ Total) × 100%
Mula 1,200 applications noong Q1, tumaas ang Region I sa 1,500 applications noong Q2. Ano ang percentage increase?
-
Step 1 (Kunin ang Raw Increase: New − Old):
1,500 − 1,200 = +300 applications -
Step 2 (I-divide sa OLD value na 1,200):
300 ÷ 1,200 = 3 / 12 = 1 / 4 -
Step 3 (Gawing Percent):
1/4 = 0.25 × 100% = 25% increase
| Regional Office | Q1 Applications (Old) | Q2 Applications (New) | Raw Change (Q2 − Q1) | % Change ((Q2 − Q1) ÷ Q1) |
|---|---|---|---|---|
| Region I | 1,200 | 1,500 | +300 | +25.0% (300 ÷ 1,200) |
| Region III | 2,000 | 2,400 | +400 (Highest Raw) | +20.0% (400 ÷ 2,000) |
| Region IV-A | 2,500 | 2,800 | +300 | +12.0% (300 ÷ 2,500) |
| Region VII | 1,800 | 1,300 | −500 | −27.8% (−500 ÷ 1,800) |
| TOTAL | 7,500 | 8,000 | +500 | +6.67% (500 ÷ 7,500) |
Sample Data Interpretation Question #1 (Percentage Growth vs. Raw Increase)
1,500 (New) ka nag-divide sa halip na sa 1,200 (Old)!
Pie Charts & Percentage Difference Shortcut
Paano makatipid ng kalahating minuto kapag nagkukumpara ng dalawang slices sa Pie Chart.
Kapag tinanong kung gaano kalaki ang agwat (difference) ng dalawang bahagi sa isang Pie Chart, huwag nang kunin nang hiwalay ang peso value ng bawat isa! Ipares o ibawas muna ang kanilang percentages bago i-multiply sa Total Budget.
Sample Data Interpretation Question #2 (IT Modernization Budget: ₱12,000,000)
How much more is allocated to Hardware Upgrade than to Staff Training?
Subtract Percentages First vs. Compute Each Amount First
Tingnan kung gaano kabilis ang Method 1 sa Pie Chart comparison problems:
Method 1: Subtract Percentages First
Ibawas muna ang % ng dalawang kategorya bago i-multiply sa Total Budget.
(40% − 20%) × ₱12,000,000
- Kunin ang agwat sa porsyento: 40% − 20% = 20%.
- I-multiply ang 20% (0.20) sa ₱12,000,000: ₱2,400,000.
Method 2: Compute Individual Peso Amounts, Then Subtract
Kunin ang 40% at 20% nang hiwalay at pagbawas-bawasin.
₱4,800,000 − ₱2,400,000
- Hardware Upgrade (40%): 0.40 × ₱12,000,000 = ₱4,800,000.
- Staff Training (20%): 0.20 × ₱12,000,000 = ₱2,400,000.
- Ibawas: ₱4,800,000 − ₱2,400,000 = ₱2,400,000.
Relational Logic: Ranking & Line-Ordering Puzzles
Paano lutasin ang 'Who is tallest / fastest / seated in the middle?' gamit ang Inequality Chain.
Sa Relational Logic Puzzles (pagkukumpara ng tangkad, edad, bilis, o palapag ng opisina), huwag itong lutasin sa isip lang. Gumamit ng > (mas mataas/mabilis) sa scratch paper para makabuo ng isang linya!
Sample Relational Ranking Puzzle
• Lara submitted her report earlier than Mico, but later than Owen.
• Nina submitted her report earlier than Owen.
• Pia submitted her report later than Mico.
Who submitted the report on Wednesday (the 3rd day)?
Short Recap: Data Interpretation & Relational Logic
- Sa Data Tables at Charts, basahin muna ang Title, Units, at Question Stem bago mag-compute.
- Sa Percentage Growth/Change, laging ang OLD (initial) value ang nasa denominator: ((New − Old) ÷ Old) × 100%.
- Sa Pie Charts, kapag hinahanap ang difference ng dalawang slices na may parehong Total Base, ibawas muna ang percentages bago i-multiply sa Total.
- Sa Relational Ranking Puzzles, gumuhit ng isang chain (A → B → C) sa scratch paper sa halip na sauluhin sa isip.
Want Another Explanation?
Sometimes, learning a topic becomes easier when you hear it explained in a different way. Here are some independently selected videos that may help you understand this lesson better.
YouTube
CIVIL SERVICE EXAM | Analytical Ability: Data Interpretation (Part 1)
Demonstrates how to read data tables, bar charts, and pie graphs accurately and compute percentage shares and ratios from visual data.
YouTube
CIVIL SERVICE EXAM | Analytical Ability: Data Interpretation (Part 2)
Continues with multi-step chart comparisons, period-over-period growth calculations, and unit/legend verification.
These videos are independently selected by ToolBayan for supplementary educational purposes. All videos remain the property of their respective creators and channels. ToolBayan is not affiliated with, sponsored by, or officially endorsed by the featured creators or channels.
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