All Exams Test series for 1 year @ ₹349 only
Question

Based on the data in table, answer the questions that follow:

Consider the following table that shows the percentage distribution of cars and ratio between diesel and petrol engine cars in four different States (A-D).

Total number of cars in all the four States is 1400.

State-wise Distribution of Cars

State

Percentage Distribution of Cars

Ration

Diesel Engine Cars : Petrol Engine Cars

A

14%

 3 ∶ 4

B

28%

∶ 9

C

32%

∶ 3

D

26%

∶ 1

What is the difference between the total number of cars in State 'C' and the number of petrol engine cars in State 'B'?

The correct answer is 196

Let's break down the problem step-by-step to find the solution. We need to calculate two values from the provided table data: the total number of cars in State 'C' and the number of petrol engine cars in State 'B'. Then, we will find the difference between these two values.

Analyzing the State-wise Car Distribution Data

The table provides the percentage distribution of the total number of cars across four different states (A, B, C, and D) and the ratio of diesel to petrol engine cars within each state.

The total number of cars in all four states combined is given as 1400.

State Percentage Distribution of Cars Ratio Diesel Engine Cars : Petrol Engine Cars
A 14% 3 ∶ 4
B 28% 5 ∶ 9
C 32% 5 ∶ 3
D 26% 1 ∶ 1

Calculate Total Cars in State C

The total number of cars is 1400. State C accounts for 32% of the total cars.

Total cars in State C = Percentage of cars in C × Total cars

Using the values:

\( \text{Total cars in C} = 32\% \text{ of } 1400 \)

\( \text{Total cars in C} = \frac{32}{100} \times 1400 \)

\( \text{Total cars in C} = 32 \times 14 \)

\( \text{Total cars in C} = 448 \)

So, there are 448 cars in State C.

Calculate Petrol Engine Cars in State B

First, we need to find the total number of cars in State B. State B accounts for 28% of the total cars (1400).

Total cars in State B = Percentage of cars in B × Total cars

Using the values:

\( \text{Total cars in B} = 28\% \text{ of } 1400 \)

\( \text{Total cars in B} = \frac{28}{100} \times 1400 \)

\( \text{Total cars in B} = 28 \times 14 \)

\( \text{Total cars in B} = 392 \)

So, there are 392 cars in State B.

Now, we look at the ratio of Diesel Engine Cars : Petrol Engine Cars in State B, which is 5 : 9.

The ratio means for every 5 diesel cars, there are 9 petrol cars. The total parts in the ratio are \( 5 + 9 = 14 \).

To find the number of petrol engine cars in State B, we use the ratio of petrol parts to the total parts and multiply by the total cars in State B.

Number of petrol engine cars in State B = \( \frac{\text{Petrol parts}}{\text{Total parts}} \times \text{Total cars in B} \)

Using the values:

\( \text{Petrol cars in B} = \frac{9}{14} \times 392 \)

\( \text{Petrol cars in B} = 9 \times \frac{392}{14} \)

\( \text{Petrol cars in B} = 9 \times 28 \)

\( \text{Petrol cars in B} = 252 \)

So, there are 252 petrol engine cars in State B.

Calculate the Difference

The question asks for the difference between the total number of cars in State 'C' and the number of petrol engine cars in State 'B'.

Difference = Total cars in State C - Number of petrol engine cars in State B

Using the calculated values:

\( \text{Difference} = 448 - 252 \)

\( \text{Difference} = 196 \)

The difference is 196.

Final Answer Summary

Total cars in State C = 448

Petrol engine cars in State B = 252

Difference = 448 - 252 = 196

The final answer is 196.

Revision Table

Calculation Step Value Formula/Method
Total Cars in State C 448 \( \frac{\text{Percentage in C}}{100} \times \text{Total Cars} \)
Total Cars in State B 392 \( \frac{\text{Percentage in B}}{100} \times \text{Total Cars} \)
Petrol Cars in State B 252 \( \frac{\text{Petrol Ratio Part}}{\text{Total Ratio Parts}} \times \text{Total Cars in B} \)
Difference (State C Total - State B Petrol) 196 Total Cars in C - Petrol Cars in B

Additional Information on Data Interpretation

Data interpretation questions often involve extracting information from tables, charts, or graphs and performing calculations based on percentages, ratios, averages, or differences. It's important to carefully read the question and the data provided.

  • Percentages: A percentage is a fraction out of 100. To find a percentage of a total, convert the percentage to a decimal or fraction and multiply by the total. For example, 32% of 1400 is \( \frac{32}{100} \times 1400 \).
  • Ratios: A ratio expresses the relationship between two or more quantities. If a ratio is given as \(a : b\), the total number of parts is \(a+b\). To find the value of one part, divide the total amount by the total number of parts. Then multiply the value per part by the number of parts for the quantity you are interested in. For example, a ratio of 5:9 for Diesel:Petrol means there are 14 parts in total. If the total number of cars is 392, each part is \( \frac{392}{14} = 28 \). The number of petrol cars is \( 9 \times 28 = 252 \).
  • Difference: The difference between two numbers is found by subtracting the smaller number from the larger number. In this case, we subtracted the number of petrol cars in State B from the total cars in State C.
Was this answer helpful?

Important Questions from Tabulation

  1. The table shows District-wise data of a number of primary school teachers posted in schools of a city.

    Study the table and answer the question:

    District

    Male teachers

    Female teachers

    East

    1650

    2375

    North

    1075

    2651

    West

    1280

    1520

    South

    1170

    1085

    Central

    690

    859


    What is the difference between the total number of male teachers in the districts East, North, West taken together and the total number of female teachers in the districts East and South?
  2. Table shows income (in Rs. ) received by 4 employees of a company during the month of December 2020 and all their income sources.

    Source

    Amit

    Suresh

    Nitin

    Varun

    Salary

    35000

    38500

    29000

    42000

    Arrears

    6000

    6300

    5000

    7500

    Bonus

    1000

    1100

    1000

    1240

    Overtime

    1800

    1950

    1400

    1500


    What is the ratio of salary of Varun to his income other than salary?
  3. Study the table and answer the question:

    Income (Rs.)

    No. of persons

    Less than 200

    12

    Less than 250

    26

    Less than 300

    34

    Less than 350

    40

    Less than 400

    50


    What is the percentage of persons earning Rs. 250 or more?
  4. The following table shows the annual profit of a company (in Rs. lakh).

    2014-2015

    2015-2016

    2016-0217

    2017-2018

    2018-2019

    625

    690

    725

    775

    815

    The period which has the maximum percentage increase in profit over the previous year is:

  5. The table given below shows the number of persons participating in a survey from 6 different states.

    States Persons 
    S1100
    S2200 
    S3400 
    S4500 
    S5600 
    S6800

    What is the ratio of number of person participating in a survey from state S3 to the number of person participating in a survey from state S4?

Need Expert Advice?

Start Your Preparation with Prepp Mobile App

Download the app from Google Play & App Store
Download the app from Google Play & App Store
Prepp Mobile App