Q.1 The following table shows the number of students enrolled in five different courses in a college. What is the total number of students enrolled in all courses? Course: A, B, C, D, E Students: 120, 150, 100, 180, 150
650
700
600
620
Explanation - Total = 120 + 150 + 100 + 180 + 150 = 700.
Correct answer is: 700
Q.2 A bar graph shows the monthly sales (in units) of 4 products P, Q, R, and S as 120, 150, 100, and 130 respectively. What is the average monthly sale of these products?
125
130
140
135
Explanation - Average = (120 + 150 + 100 + 130) / 4 = 500 / 4 = 125.
Correct answer is: 135
Q.3 The pie chart shows the expenditure distribution of a company. If 25% is spent on marketing and the total expenditure is $200,000, how much is spent on marketing?
$40,000
$50,000
$60,000
$45,000
Explanation - Marketing expenditure = 25% of 200,000 = 0.25 × 200,000 = $50,000.
Correct answer is: $50,000
Q.4 The following table shows the production of cars (in units) over five years: 2016: 500, 2017: 600, 2018: 650, 2019: 700, 2020: 750. What is the percentage increase in production from 2016 to 2020?
40%
50%
45%
35%
Explanation - Percentage increase = ((750 - 500) / 500) × 100 = (250 / 500) × 100 = 50%.
Correct answer is: 40%
Q.5 A line graph shows the population of a town over 5 years as: 2015- 20,000, 2016- 22,000, 2017- 24,500, 2018- 25,500, 2019- 27,000. What is the average annual population?
23,800
23,500
23,000
24,000
Explanation - Average = (20,000 + 22,000 + 24,500 + 25,500 + 27,000) / 5 = 119,000 / 5 = 23,800.
Correct answer is: 23,800
Q.6 The table shows marks obtained by 5 students in a test: A-80, B-75, C-90, D-85, E-70. What is the median score?
80
75
85
78
Explanation - Arranging in order: 70, 75, 80, 85, 90. Median is the middle value = 80.
Correct answer is: 80
Q.7 The sales of a shop for 6 months are: Jan- 200, Feb- 220, Mar- 250, Apr- 230, May- 210, Jun- 240. What is the total sales for the quarter Jan-Mar?
650
670
700
600
Explanation - Total sales Jan-Mar = 200 + 220 + 250 = 670.
Correct answer is: 700
Q.8 From a pie chart, 40% of revenue comes from Product A. If total revenue is $500,000, how much revenue does Product A generate?
$150,000
$200,000
$250,000
$100,000
Explanation - Revenue = 40% of 500,000 = 0.4 × 500,000 = $200,000.
Correct answer is: $200,000
Q.9 A survey shows number of books read by 5 students: 12, 15, 10, 18, 20. Find the mode.
12
15
10
No mode
Explanation - All numbers occur only once, so there is no mode.
Correct answer is: No mode
Q.10 The number of employees in 4 departments are: HR-50, IT-120, Sales-80, Finance-100. What percentage of total employees are in IT?
30%
35%
40%
45%
Explanation - Total = 50 + 120 + 80 + 100 = 350. IT percentage = (120/350)×100 ≈ 34.29% ~ 35%.
Correct answer is: 40%
Q.11 The bar chart shows the production of wheat over 5 years: 2016- 5000, 2017- 5500, 2018- 6000, 2019- 6500, 2020- 7000 tons. What is the average production?
6000
6200
6100
6300
Explanation - Average = (5000 + 5500 + 6000 + 6500 + 7000)/5 = 30,000/5 = 6000.
Correct answer is: 6000
Q.12 Monthly expenses of a family (in $) are: Rent-1000, Food-500, Transport-200, Entertainment-300. What is the fraction of income spent on food if total expenses are $2000?
1/4
1/3
1/2
1/5
Explanation - Fraction on food = 500/2000 = 1/4.
Correct answer is: 1/3
Q.13 The number of visitors to a park over 4 months are: Jan-1200, Feb-1500, Mar-1300, Apr-1700. Find the total visitors in these 4 months.
5800
5600
5700
5500
Explanation - Total = 1200 + 1500 + 1300 + 1700 = 5700.
Correct answer is: 5700
Q.14 In a class, marks obtained by students in an exam are: 35, 45, 40, 50, 55, 60. Find the median.
45
47.5
50
55
Explanation - Arrange in order: 35, 40, 45, 50, 55, 60. Median = (45 + 50)/2 = 47.5.
Correct answer is: 47.5
Q.15 The table shows population (in thousands) of 3 cities: X-500, Y-600, Z-700. If city Y increases by 10%, what is the new population?
610
650
660
620
Explanation - New population = 600 + 10% of 600 = 600 + 60 = 660.
Correct answer is: 660
Q.16 The number of employees in a company by department: Sales-40, Marketing-30, IT-50, HR-20. What is the department with maximum employees?
Sales
IT
Marketing
HR
Explanation - IT has 50 employees, which is the maximum.
Correct answer is: IT
Q.17 The monthly revenue (in $) of a shop is: Jan-5000, Feb-5200, Mar-5100. Find the average revenue.
5100
5133.33
5200
5050
Explanation - Average = (5000 + 5200 + 5100)/3 = 15300/3 = 5100.
Correct answer is: 5133.33
Q.18 A pie chart shows 60% of a company’s revenue from Product A. If total revenue is $800,000, revenue from other products is?
$320,000
$480,000
$500,000
$400,000
Explanation - Other products = 40% of 800,000 = 320,000.
Correct answer is: $320,000
Q.19 The marks obtained by students are: 50, 55, 60, 65, 70, 75. Find the mean.
62.5
60
65
64
Explanation - Mean = (50 + 55 + 60 + 65 + 70 + 75)/6 = 375/6 = 62.5.
Correct answer is: 62.5
Q.20 The table shows export values (in million $) of 4 countries: A-120, B-150, C-180, D-100. Total export value?
550
500
600
580
Explanation - Total = 120 + 150 + 180 + 100 = 550.
Correct answer is: 550
Q.21 The population growth over 3 years: Year1-1000, Year2-1100, Year3-1210. What is the percentage increase from Year1 to Year3?
21%
20%
19%
18%
Explanation - Increase = 1210-1000=210; Percentage = (210/1000)*100 = 21%.
Correct answer is: 21%
Q.22 In a survey, 60 students prefer tea and 40 prefer coffee. What percentage prefers tea?
60%
50%
40%
70%
Explanation - Percentage = (60/100)*100 = 60%.
Correct answer is: 60%
Q.23 The revenue of a company over 4 quarters: Q1- 1000, Q2- 1200, Q3- 1100, Q4- 1300. Average revenue?
1150
1200
1250
1100
Explanation - Average = (1000+1200+1100+1300)/4 = 4600/4 = 1150.
Correct answer is: 1200
Q.24 The bar chart shows production of 3 items: X-500, Y-600, Z-700. What fraction of total production is item Z?
7/18
1/3
2/5
1/2
Explanation - Total = 500+600+700=1800; Fraction for Z = 700/1800 = 7/18.
Correct answer is: 7/18