Percentage-wise distribution of all science students in a university is given in the pie-diagram. The bar chart shows the distribution of physics students in different sub-areas, where a student takes one and only one sub-area. What percentage of the total science students is girls studying quantum mechanics?
To find the percentage of the total science students who are girls studying quantum mechanics, we need to follow the steps below, using the given pie and bar charts.
- Determine the proportion of physics students among all science students.
- From the pie chart, the percentage of physics students is \(20\%\).
- Identify the distribution of girls in quantum mechanics.
- In the bar chart, the number of girls studying quantum mechanics is \(180\).
- Calculate the total number of quantum mechanics students.
- The total number of students studying quantum mechanics is \(180 + 150 = 330\).
- Calculate the fraction of physics students studying quantum mechanics.
- The fraction is given by \(\frac{330}{\text{Total Physics Students}}\).
- We know the total physics students account for \(20\%\) of all science students.
- Determine the percentage of science students who are girls in quantum mechanics.
- The fraction of girls among the quantum mechanics students is \(\frac{180}{330}\).
- Therefore, the percentage of the total science students who are girls studying quantum mechanics is:
- \(\left(\frac{180}{330}\right) \times \left(\frac{20}{100}\right) \times 100 = 2\%\).
Therefore, the correct answer is 2%.
Important Questions from Data Interpetation (Notes)
- Answer the question on the basis of the informations given below :
Three different climatic factors for four cities in India are shown in the following table :City Average Annual Rainfall (in mm) Average Annual Temperature (in degree centigrade) Maximum humidity in the year A 75 21 126 B 86 17 130 C 68 17 160 D 70 24 150
If humidity factor is defined as average annual rainfall divided by average annual temperature for the cities, the humidity factor is highest for which city ? The pie charts show placement percentages of graduates of five different subjects out of the total campus placements for two consecutive years.
In the year 2024, the number of Maths students who got placed was the double that of the previous year. Which of the following is the closest to the percentage change in the number of Life Sciences students placed in the year 2024?The following ternary figure shows the marks obtained by students A, B and C in an exam of 100 marks. Here, C received 10 marks in Physics, 50 marks in Chemistry and 40 marks in Mathematics.
Which one of the following is CORRECT?The Sankey diagram shows food preferences of males and females. The widths of the bands are proportional to numbers of persons opting for a given food item.
Which one of the following is an INCORRECT statement about the food preferences?The following figure shows densities and masses of five objects (A to E).
The object with the largest volume is _____
