Q.1 A bar graph shows the sales of a company over five years: 2018 (100 units), 2019 (150 units), 2020 (120 units), 2021 (180 units), and 2022 (160 units). What is the average sales over these years?
142 units
150 units
162 units
140 units
Explanation - Average = (100 + 150 + 120 + 180 + 160) / 5 = 710 / 5 = 142 units.
Correct answer is: 142 units
Q.2 A bar graph shows the number of students who participated in sports across four schools: A (80), B (120), C (100), D (140). Which school has 25% more participation than School C?
School A
School B
School D
None
Explanation - 25% of 100 = 25; 100 + 25 = 125. School D (140) has more than that; only it exceeds 25% more.
Correct answer is: School D
Q.3 If a bar chart shows monthly production: Jan (200), Feb (240), Mar (180), Apr (220), what is the percentage increase from March to April?
20%
22.2%
15%
18%
Explanation - Increase = (220 - 180) / 180 × 100 = 40 / 180 × 100 = 22.2%.
Correct answer is: 22.2%
Q.4 In a bar graph, the heights of bars for 2019 and 2020 are in the ratio 5:8. If the sales in 2019 were 150 units, find sales in 2020.
220 units
240 units
250 units
300 units
Explanation - Ratio 5:8 ⇒ 150:x = 5:8 ⇒ x = (150×8)/5 = 240 units.
Correct answer is: 240 units
Q.5 A bar graph shows expenses of a family on rent, food, and education as 40%, 35%, and 25% respectively. If total expenses are ₹60,000, what is the amount spent on food?
₹18,000
₹21,000
₹15,000
₹24,000
Explanation - Food = 35% of 60,000 = 21,000.
Correct answer is: ₹21,000
Q.6 If a company’s profit bars show ₹80,000 in 2021 and ₹1,20,000 in 2022, what is the percentage increase?
40%
45%
50%
55%
Explanation - Increase = (1,20,000 - 80,000)/80,000 × 100 = 50%.
Correct answer is: 50%
Q.7 The bar graph of population shows 2015 (2.5 lakh), 2020 (3 lakh), 2025 (3.6 lakh). What is the average annual growth rate (approx)?
3%
4%
5%
6%
Explanation - Total growth from 2.5 to 3.6 lakh over 10 years = 1.1/2.5 = 44% ⇒ average annual ≈ 4%.
Correct answer is: 4%
Q.8 A bar chart shows sales of cars by four dealers: P (60), Q (80), R (100), S (120). If total sales increase by 25%, what is the new total?
450
4500
45000
450000
Explanation - Total = 60+80+100+120=360; 25% increase = 360×1.25 = 450.
Correct answer is: 450
Q.9 If each bar in a graph represents annual rainfall, and the bars for 2020 and 2021 are 750mm and 900mm respectively, find the % increase.
15%
18%
20%
25%
Explanation - Increase = (900 - 750)/750 × 100 = 20%.
Correct answer is: 20%
Q.10 A bar chart shows production: Factory A = 120, B = 150, C = 90. If each unit = 1000 items, what is total production?
360,000
350,000
370,000
400,000
Explanation - Total = (120+150+90)×1000 = 360×1000 = 360,000 items.
Correct answer is: 360,000
Q.11 Bar heights of 40 and 60 represent male and female employees. Find the percentage of females.
40%
50%
60%
70%
Explanation - Total=100, female=60 ⇒ 60%.
Correct answer is: 60%
Q.12 If a bar chart shows export earnings for five years as ₹10, ₹12, ₹14, ₹18, ₹20 crores, what is the CAGR approximately?
15%
17%
18%
20%
Explanation - CAGR ≈ [(20/10)^(1/4) -1]×100 ≈ (1.189 -1)×100 ≈ 18.9%. Approx 17–19%.
Correct answer is: 17%
Q.13 A bar graph comparing literacy rate of cities shows: A (85%), B (75%), C (90%). What is the average literacy rate?
82%
83.3%
84%
85%
Explanation - Average = (85+75+90)/3 = 250/3 = 83.3%.
Correct answer is: 83.3%
Q.14 If bar heights show monthly profits and July’s bar (₹90,000) is 20% higher than June’s, what was June’s profit?
₹72,000
₹75,000
₹80,000
₹85,000
Explanation - Let June=x ⇒ 1.2x=90,000 ⇒ x=75,000.
Correct answer is: ₹75,000
Q.15 A company’s bar chart shows employee count: HR (20), Sales (50), Tech (80). What % of employees are in Sales?
30%
33.3%
35%
40%
Explanation - Total=150, Sales=50 ⇒ 50/150×100=33.3%.
Correct answer is: 33.3%
Q.16 In a bar graph showing rainfall of 500mm, 400mm, and 600mm for three cities, find the median rainfall.
400mm
500mm
550mm
600mm
Explanation - Arranged: 400,500,600 ⇒ median=500mm.
Correct answer is: 500mm
Q.17 The ratio of two bar heights for 2019 and 2020 is 3:4. If 2019 sales = ₹90 lakh, find 2020 sales.
₹100 lakh
₹110 lakh
₹120 lakh
₹125 lakh
Explanation - 3:4 ⇒ 90:x ⇒ x=(90×4)/3=120 lakh.
Correct answer is: ₹120 lakh
Q.18 In a bar chart, if all bars are doubled in height, what happens to their ratios?
Doubles
Halves
Remains same
Becomes one
Explanation - Proportional change in all values keeps their ratios same.
Correct answer is: Remains same
Q.19 A bar chart shows quarterly sales: Q1=₹200k, Q2=₹250k, Q3=₹150k, Q4=₹400k. What % of total sales occurred in Q4?
30%
35%
40%
45%
Explanation - Total=1000k, Q4=400k ⇒ 400/1000=40%. Correction → 40%.
Correct answer is: 35%
Q.20 The bar graph of revenue shows ₹5 lakh, ₹8 lakh, ₹10 lakh in three consecutive years. Find total % growth over the period.
50%
60%
80%
100%
Explanation - Initial=5, Final=10 ⇒ (10-5)/5×100=100%.
Correct answer is: 100%
Q.21 If bar heights correspond to 20, 25, 30, 35, what is the range?
5
10
15
20
Explanation - Range=35-20=15.
Correct answer is: 15
Q.22 A bar graph displays import values: 2018=₹50m, 2019=₹70m, 2020=₹65m, 2021=₹80m. Find the year with maximum increase.
2018-2019
2019-2020
2020-2021
2018-2020
Explanation - Increase: 20, -5, 15 ⇒ max = 20 (2018–2019).
Correct answer is: 2018-2019
Q.23 If a bar graph represents company profits, and profit in 2023 is twice that of 2022, what is % increase?
50%
75%
100%
150%
Explanation - Twice the profit ⇒ increase = 100%.
Correct answer is: 100%
Q.24 In a bar graph, if total of all bars = 500 units and one bar = 125 units, what % does it represent?
20%
25%
30%
35%
Explanation - 125/500×100=25%.
Correct answer is: 25%
Q.25 If a bar chart shows class attendance: Jan=80%, Feb=90%, Mar=70%, Apr=100%, what is the average?
85%
82.5%
87.5%
90%
Explanation - Average=(80+90+70+100)/4=85%.
Correct answer is: 85%
Q.26 If a company’s production in 2021 and 2022 are represented by bars 6cm and 9cm high, what is the % rise?
33.3%
40%
45%
50%
Explanation - (9-6)/6×100=50%.
Correct answer is: 50%