Competitive Exams : Quantitative Aptitude - DI (Tabular/Bar/Pie) (Set 2) | Concept of Maths

Question 1

1. What is the total production of Company A across all three years?

A) $510$ thousand

B) $520$ thousand

C) $540$ thousand

D) $550$ thousand

Answer

Correct Answer: C

Total production of A = Sum of production in 2021, 2022, and 2023. $$\text{Total} = 150 + 180 + 210 = 540 \text{ thousand.}$$

Question 2

2. What is the average production of all five companies in the year 2022?

A) $168$ thousand

B) $172$ thousand

C) $165$ thousand

D) $170$ thousand

Answer

Correct Answer: A

$$\text{Average (2022)} = \frac{180 + 140 + 220 + 110 + 190}{5}$$ $$\text{Average} = \frac{840}{5} = 168 \text{ thousand.}$$

Question 3

3. What is the ratio of the production of Company B in 2021 to the production of Company D in 2023?

A) $12:11$

B) $6:5$

C) $15:13$

D) $12:13$

Answer

Correct Answer: D

Production of B in 2021 = $120$ Production of D in 2023 = $130$ $$\text{Ratio} = 120 : 130 = 12 : 13$$

Question 4

4. What is the difference between the total number of students in College Y and College X?

A) $50$

B) $100$

C) $150$

Question 5

5. The number of girls in College Z is what percentage of the total students in College Z?

A) $60\%$

B) $50\%$

C) $62.5\%$

D) $65\%$

Answer

Correct Answer: C

Total in Z = $300 + 500 = 800$ $$\text{Percentage} = \left( \frac{500}{800} \right) \times 100 = \frac{5}{8} \times 100 = 62.5\%$$

Question 6

6. What is the average number of boys across all three colleges?

A) $383.33$

B) $375.00$

C) $400.00$

D) $350.00$

Answer

Correct Answer: A

Question 7

7. How much amount is spent on Food monthly?

A) $₹30,000$

B) $₹36,000$

C) $₹25,000$

D) $₹40,000$

Answer

Correct Answer: B

$$\text{Food Expense} = 30\% \text{ of } 1,20,000 = \frac{30}{100} \times 1,20,000 = 36,000$$

Question 8

8. What is the difference in the amount spent on Rent and Education?

A) $₹10,000$

B) $₹15,000$

C) $₹18,000$

D) $₹12,000$

Answer

Correct Answer: D

Difference in percentage = $25\% - 15\% = 10\%$ $$\text{Difference in Amount} = 10\% \text{ of } 1,20,000 = 12,000$$

Question 9

9. What is the central angle corresponding to the 'Savings' sector in the pie chart?

A) $72^\circ$

B) $60^\circ$

C) $90^\circ$

D) $54^\circ$

Answer

Correct Answer: A

$$\text{Central Angle} = \left( \frac{\text{Percentage}}{100} \right) \times 360^\circ$$ $$\text{Angle} = \left( \frac{20}{100} \right) \times 360^\circ = 0.2 \times 360^\circ = 72^\circ$$

Question 10

10. What is the ratio of the total expenditure on Food and Rent together to the total of Savings and Others?

A) $5:3$

B) $2:1$

C) $11:6$

D) $10:7$

Answer

Correct Answer: C

Food + Rent = $30\% + 25\% = 55\%$ Savings + Others = $20\% + 10\% = 30\%$ $$\text{Ratio} = 55 : 30 = 11 : 6$$

Accepted Answer

Correct Answer: B

Total in X = $400 + 350 = 750$ Total in Y = $450 + 400 = 850$ $$\text{Difference} = 850 - 750 = 100$$

Competitive Exams : Quantitative Aptitude - DI (Tabular/Bar/Pie) (Set 2) | Concept of Maths