Q.1 The following bar graph shows the number of students in five different classes. Class A: 50, Class B: 60, Class C: 40, Class D: 70, Class E: 30. What is the total number of students in all classes?
250
260
240
270
Explanation - Total = 50 + 60 + 40 + 70 + 30 = 250
Correct answer is: 250
Q.2 If the highest bar in a bar graph represents 120 units and the lowest bar represents 30 units, what is the difference in units?
90
150
60
100
Explanation - Difference = 120 - 30 = 90
Correct answer is: 90
Q.3 In a bar graph, the sales of a product over 4 months are shown as: Jan: 200, Feb: 180, Mar: 220, Apr: 200. Which month shows the highest sales?
January
March
April
February
Explanation - March has the highest sales of 220 units.
Correct answer is: March
Q.4 A bar graph shows population (in thousands) of 5 cities: 40, 55, 60, 35, 50. What is the average population?
48
50
48.5
52
Explanation - Average = (40+55+60+35+50)/5 = 240/5 = 48
Correct answer is: 48
Q.5 If a bar representing June sales is twice the height of May sales bar which is 150 units, how many units were sold in June?
300
250
200
350
Explanation - June sales = 2 × 150 = 300
Correct answer is: 300
Q.6 In a bar graph, the height of each bar represents the monthly profit (in ₹ thousands). If the heights of the bars for 5 months are 10, 15, 20, 25, 30, what is the total profit?
100
90
95
105
Explanation - Total profit = 10+15+20+25+30 = 100
Correct answer is: 100
Q.7 A bar graph shows the number of cars sold by 4 dealers: 80, 120, 100, 90. Which dealer sold the second-highest number of cars?
Dealer A
Dealer B
Dealer C
Dealer D
Explanation - Sales in descending order: 120(B), 100(C), 90(D), 80(A). Second highest is 100 (Dealer C).
Correct answer is: Dealer C
Q.8 If a bar graph uses a scale of 1 cm = 50 units and a bar is 6 cm high, how many units does it represent?
300
250
350
400
Explanation - Units = 6 × 50 = 300
Correct answer is: 300
Q.9 In a bar graph representing students in 6 sections: 25, 30, 28, 32, 26, 29. What is the median number of students?
28
28.5
29
30
Explanation - Arrange in order: 25,26,28,29,30,32. Median = (28+29)/2 = 28.5
Correct answer is: 28.5
Q.10 If a bar graph compares monthly expenditure and the difference between two consecutive months is consistently ₹500, what type of trend does it show?
Increasing
Decreasing
Constant
Fluctuating
Explanation - Each month increases by ₹500, showing an increasing trend.
Correct answer is: Increasing
Q.11 The population of 4 villages is represented in a bar graph: 1.2k, 1.5k, 1.0k, 1.3k. What is the total population?
5.0k
4.9k
4.8k
5.1k
Explanation - Total = 1.2+1.5+1.0+1.3 = 5.0k
Correct answer is: 5.0k
Q.12 A bar graph shows monthly rainfall in cm: 4, 5, 3, 6, 2. Which month had the lowest rainfall?
Month 1
Month 2
Month 3
Month 5
Explanation - Month 5 has the lowest rainfall of 2 cm.
Correct answer is: Month 5
Q.13 If a bar graph shows the marks of 5 students: 45, 55, 65, 35, 50. What is the range of marks?
30
35
25
20
Explanation - Range = Highest - Lowest = 65 - 35 = 30
Correct answer is: 30
Q.14 A bar graph depicts the number of books read by students: 5, 8, 10, 6, 7. What is the mode?
5
6
7
No mode
Explanation - All numbers occur only once, so there is no mode.
Correct answer is: No mode
Q.15 In a bar graph, the bar for April is 5 cm and the scale is 1 cm = 100 items. How many items does April represent?
500
400
600
450
Explanation - Items = 5 × 100 = 500
Correct answer is: 500
Q.16 A bar graph shows the attendance of 5 classes: 50, 60, 70, 80, 90. What is the percentage of the highest attendance compared to the total attendance?
25%
20%
30%
15%
Explanation - Total = 50+60+70+80+90 = 350. Highest = 90. Percentage = (90/350)*100 = 25.71≈26% (rounding to closest option 25%)
Correct answer is: 30%
Q.17 If two bars in a graph have equal height, what does it indicate?
Same quantity
Different quantity
Trend
Scale error
Explanation - Equal height bars represent the same quantity or value.
Correct answer is: Same quantity
Q.18 Bar graph shows profits of a company over 5 months: 10k, 15k, 20k, 25k, 30k. What is the percentage increase from first to last month?
200%
150%
300%
250%
Explanation - Percentage increase = ((30-10)/10)*100 = 200%
Correct answer is: 200%
Q.19 In a bar graph showing weekly production: 100, 120, 110, 130, 115. Which week had production closest to average?
Week 1
Week 2
Week 3
Week 5
Explanation - Average = (100+120+110+130+115)/5 = 575/5 = 115. Week 3 = 110 and Week 5 = 115, Week 5 is exactly average.
Correct answer is: Week 3
Q.20 A bar graph depicts 5 products sold: 40, 60, 80, 100, 120. What fraction of total sales is represented by the highest selling product?
1/5
1/4
1/6
1/3
Explanation - Total = 40+60+80+100+120=400. Highest = 120. Fraction = 120/400 = 1/3 (corrected from calculation).
Correct answer is: 1/5
Q.21 Bar heights are proportional to number of students: 2, 4, 6, 8, 10. If scale = 1 unit = 5 students, how many students in highest bar?
50
40
45
55
Explanation - Highest bar = 10 × 5 = 50 students
Correct answer is: 50
Q.22 If the bar graph shows decreasing production 500, 450, 400, 350, 300, what type of trend is represented?
Increasing
Decreasing
Stable
Random
Explanation - Values are consistently decreasing, indicating a decreasing trend.
Correct answer is: Decreasing
Q.23 A bar graph represents revenue (₹ lakhs): 5, 7, 6, 8, 9. What is the median revenue?
6
7
7.5
8
Explanation - Arrange: 5,6,7,8,9. Median = middle value = 7.
Correct answer is: 7
Q.24 Bar graph shows monthly expenditure: 2000, 2500, 3000, 3500, 4000. What is the total expenditure?
14000
15000
16000
15500
Explanation - Total = 2000+2500+3000+3500+4000 = 15000
Correct answer is: 15000