1. The sales of a company (in Rs lakh) over 5 years are: 2019:40, 2020:50, 2021:45, 2022:60, 2023:70. What is the total sales over these 5 years?
- A255 lakh
- B260 lakh
- C265 lakh
- D270 lakh
Show answer
Answer: C
Total=40+50+45+60+70=265 lakh.
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Data Interpretation — Mathematics Questions & Practice
Practise 19 Data Interpretation questions from Mathematics for competitive exams such as UPSC, Banking, SSC and Railway. Read the worked questions below, check every answer with an explanation, and track what you get wrong.
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Practice questions on Data Interpretation — with answers
Try each question first, then open the answer. Explanations are included.
2. Using the sales data: 2019:40, 2020:50, 2021:45, 2022:60, 2023:70 (Rs lakh), what is the average annual sales?
- A51 lakh
- B53 lakh
- C55 lakh
- D57 lakh
Show answer
Answer: B
Average=265/5=53 lakh.
3. Using the sales data: 2019:40, 2020:50, 2021:45, 2022:60, 2023:70 (Rs lakh), what is the percentage increase in sales from 2019 to 2023?
- A65%
- B70%
- C75%
- D80%
Show answer
Answer: C
Increase=70-40=30. Percentage=(30/40)×100=75%.
4. A bar graph shows the number of students in 4 sections: A=35, B=42, C=38, D=45. What is the total number of students?
- A156
- B158
- C160
- D162
Show answer
Answer: C
Total=35+42+38+45=160.
5. A table shows the marks of 5 students out of 100: A=78, B=85, C=62, D=90, E=70. What is the average marks?
- A75
- B77
- C79
- D81
Show answer
Answer: B
Total=78+85+62+90+70=385. Average=385/5=77.
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