Data in respect of Demand and Production of Computers of five companies, A - E…
2020
Data in respect of Demand and Production of Computers of five companies, A - E are shown in the figure. Based on the data, answer questions that follow.
The ratio of the number of companies having more production than demand to that of companies having more demand than production is
- A.
3:2
- B.
1:4
- C.
4:1
- D.
2:3
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Show answer & explanation
Correct answer: D
Concept: In a paired bar chart, each category (here, company) has two bars — one for demand and one for production. Compare the two bars directly for each company: if the production bar is taller, production exceeds demand for that company, and if the demand bar is taller, demand exceeds production. Classify every company this way, then express the two group counts as a ratio in the order the question asks for.
Company | Demand | Production |
|---|---|---|
A | 2000 | 1000 |
B | 300 | 900 |
C | 1250 | 500 |
D | 600 | 1350 |
E | 1650 | 1100 |
Company A: demand (2000) is greater than production (1000), so A is demand-dominant.
Company B: production (900) is greater than demand (300), so B is production-dominant.
Company C: demand (1250) is greater than production (500), so C is demand-dominant.
Company D: production (1350) is greater than demand (600), so D is production-dominant.
Company E: demand (1650) is greater than production (1100), so E is demand-dominant.
Production-dominant companies: B and D, a total of 2. Demand-dominant companies: A, C and E, a total of 3.
Cross-check: 2 + 3 = 5 accounts for all five companies, so no company was missed or counted twice, and each comparison above follows directly from the values read off the chart.
Required ratio = production-dominant companies : demand-dominant companies = 2 : 3.