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Mock Test

Exam: RRB NTPC Subject: Quantitative Aptitude Topic: Data Interpretation
Total Questions: 20
  1. Q1. A line graph shows the performance of two students in monthly tests. If student A scored 70 in the first test and 80 in the third test, what is the increase in score?
  2. Q2. A line graph shows the speed of a car over 4 hours. If the average speed was 60 km/hr, what is the total distance covered by the car?
  3. Q3. To visualize the relationship between two categorical variables, such as gender and preference for a product, what chart type is most appropriate?
  4. Q4. A _____ is useful for visualizing how different components contribute to a total, often expressed as percentages.
  5. Q5. The bar graph displays the marks obtained by students in an exam. If 60% of the students passed, and the number of students who failed is 40, how many students appeared for the exam?
  6. Q6. In a survey of 1000 people, the number of people who like coffee is 600, the number of people who like tea is 500, and the number of people who like both coffee and tea is 300. What is the number of people who like neither coffee nor tea?
  7. Q7. The bar graph shows the number of candidates who appeared for an examination from five different cities (A, B, C, D, E) and the percentage of candidates who passed from each city. If the number of candidates who appeared from city A is 20% more than that from city C, and the number of candidates who passed from city A is 15% less than that from city B, and the number of candidates who appeared from city D is 25% less than that from city E. The percentage of candidates who passed from city C is 60%, from city D is 75%, and from city E is 80%. If the number of candidates who passed from city A is 5400, what is the total number of candidates who appeared from city B?
  8. Q8. For Product A, if the production in 2022 increased by 10% and the profit per unit remained the same as in 2021, what would be the percentage increase in total profit from Product A in 2022 compared to its actual profit in 2021?
  9. Q9. A table shows the scores of two teams in a series of matches. If Team A scored 200 runs in total and Team B scored 180 runs in total, what is the difference in their total scores?
  10. Q10. By what percentage is the number of students in School B greater than in School D?
  11. Q11. A company has branches in three cities. The caselet provides the profit generated by each branch. Which branch generated the lowest profit?
  12. Q12. A car travels from city A to city B at a speed of 40 km/hr and returns from city B to city A at a speed of 60 km/hr. What is the average speed for the entire journey?
  13. Q13. A pie chart shows the percentage of people in a town who own different types of vehicles. If the total population of the town is 50,000, how many people own motorcycles?
  14. Q14. The bar graph shows the profit (in lakhs) of a company for five consecutive years. If the revenue in Year 3 was ₹600 lakhs and the profit in Year 4 was 15% more than the profit in Year 3, what is the approximate revenue in Year 4, given that profit is 40% of revenue?
  15. Q15. A vendor sells 20 pens for Rs. 100 at a loss of 10%. How many pens should he sell for Rs. 100 to gain 20%?
  16. Q16. The line graph depicts the daily sales of two different models of smartphones (Model X and Model Y) over a week. If the total sales of Model X for the week were 1200 units, and its sales on Saturday and Sunday were each 25% of its total weekly sales, while its sales on Friday were 15% of its total weekly sales, what were the combined sales of Model X on Monday, Tuesday, Wednesday, and Thursday?
  17. Q17. A histogram shows the number of students who scored marks in different ranges. If the range 80-90 has a frequency of 15, how many students scored between 80 and 90 (inclusive of 80, exclusive of 90)?
  18. Q18. Which statistical measure gives the range of values in a dataset?
  19. Q19. A line graph represents the percentage of marks obtained by a student in six subjects. Subject 1: 70%, Subject 2: 80%, Subject 3: 75%, Subject 4: 85%, Subject 5: 70%, Subject 6: 90%. What is the average percentage of marks obtained?
  20. Q20. A composite bar graph shows the number of male and female employees in five different departments of a company. If the total number of employees in the company is 1500, and the number of male employees in departments A and B combined is 400, and the number of female employees in departments C and D combined is 350, what is the number of male employees in departments C, D, and E combined?

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