Data Interpretation Questions and Answers

Answer: A

The answer is about 13 per cent. For 2012 add the candidates selected in the five districts: 82 + 70 + 48 + 65 + 55 = 320. Add those who qualified: 640 + 560 + 400 + 525 + 350 = 2475. The required percentage is \[\frac{320}{2475} \times 100 \approx 12.9\] which is about 13 per cent. The options 10, 8 and 15 per cent are further from 12.9. The table was read from the page image, where the 2014 Bankura appeared figure reads 4500.

Answer: B

The difference for school B is 750. From the data the number of students from school B who appeared is 2000 and the number who qualified is 1250. \[ 2000 - 1250 = 750 \] The values 650, 850 and 950 do not match the difference; 650 and 850 are close to it, but they are not the figures of the bars of school B.

Answer: B

A larger area on a radar chart generally indicates higher values across the board. By visual inspection of the data points, Company B has the highest or second-highest values on most metrics (Sales: 90, Profit: 85, Market Share: 75, Customer Sat.: 90). Company A has lower values (e.g., Sales 70, Market Share 60) and Company C also has lower values in some areas (Profit 60, Customer Sat. 70). Therefore, Company B covers the largest area.

Answer: D

Average Company C's four metrics.

\[ 80 + 60 + 80 + 70 = 290 \]

\[ \frac{290}{4} = 72.5 \]

Answer: C

Read the Geography column and average the six marks.

\[ 88 + 92 + 70 + 65 + 85 + 74 = 474 \]

\[ \frac{474}{6} = 79 \]

Answer: B

We need to calculate the total marks for each student.

• Ankit: 90+50+90+88+70 = 388
• Priya: 100+80+80+92+98 = 450
• Rahul: 90+60+70+70+80 = 370
• Suman: 80+65+80+65+75 = 365
• Sneha: 70+75+85+85+65 = 380
• Rohit: 65+55+95+74+70 = 359

Priya has the highest total marks (450).

Answer: C

Suman scored 65 in English and Priya 80.

\[ \frac{65}{80} \times 100 = 81.25\% \]

Priya's mark is the base, since the question asks what Suman's was of hers.

Answer: C

Total marks obtained by Rahul = 90+60+70+70+80 = 370.

The maximum marks for each subject is 100. For 5 subjects, the total maximum marks = 500.

Overall Percentage = \(\frac{\text{Total Marks Obtained}}{\text{Total Maximum Marks}} \times 100\)

= \(\frac{370}{500} \times 100 = 74\)%.

Answer: D

The question provides the number of employees in the IT department, which can be used to find the total.

Number of employees in IT = 990.

From the pie chart, the percentage of employees in IT = 22%.

Let T be the total number of employees.

22% of T = 990

0.22 * T = 990

T = 990 / 0.22 = 4500.

The total number of employees is 4500.

Answer: B

Correct answer: 2280

The IT department is 22% of the workforce and holds 990 people, so the company total is

\[\frac{990}{0.22} = 4500\]

Apply each department’s percentage, then split it by the male:female ratio.

HR, 12% of 4500 = 540, ratio 1:2, males \(= \tfrac{1}{3}\times 540 = 180\).
Accounts, 18% = 810, ratio 4:5, males \(= \tfrac{4}{9}\times 810 = 360\).
Production, 28% = 1260, ratio 11:7, males \(= \tfrac{11}{18}\times 1260 = 770\).
IT, 22% = 990, ratio 5:4, males \(= \tfrac{5}{9}\times 990 = 550\).
Marketing, 20% = 900, ratio 7:8, males \(= \tfrac{7}{15}\times 900 = 420\).

\[180 + 360 + 770 + 550 + 420 = 2280\]

The remaining 2220 employees are female, and the two figures add back to 4500.