Quantitative Aptitude

Data Interpretation

290 Questions
All Percentage & Fraction Conversion 77 Sum, Difference & Average 76 Ratio Comparison 37 Pie Chart Angle Mapping 33 Missing Data Derivation 27 Commercial Arithmetic Application 19 Direct Value Extraction 10 Trend & Growth Analysis 9 Compound DI Cross-Referencing 1 Permutations & Arrangements 1

Data Interpretation Questions

Multiple choice

Students Number of assignments Charlie 12 Terry 13 Wade 16 Ivan 18 Seth 11 The table shows the number of assignments done by 5 students in the month of March. If Ivan was removed out of the data, what would be the difference in the mean of the number of assignments?

  1. Decreased by 1

  2. Increased by 1.5

  3. Increased by 3

  4. Decreased by 4.4
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Initial mean = (12+13+16+18+11)/5 = 70/5 = 14. Removing Ivan (18): New mean = (12+13+16+11)/4 = 52/4 = 13. The mean decreased by 14 - 13 = 1.

Multiple choice

The central angles p, q, r and s (in degrees) of four sectors in a Pie Chart satisfy the relation 9p = 3q = 2r = 6s. What is the value of 4p - q?

  1. 12

  2. 24

  3. 30

  4. 36
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Given 9p = 3q = 2r = 6s = k. Then p=k/9, q=k/3, r=k/2, s=k/6. The sum of angles in a pie chart is 360: k/9 + k/3 + k/2 + k/6 = 360. Multiplying by 18 gives 2k + 6k + 9k + 3k = 6480, so 20k = 6480, k = 324. Thus p = 36, q = 108. 4p - q = 4(36) - 108 = 144 - 108 = 36.

Multiple choice

The following table shows income (in Rs.) received by four employees of a company during the month of December 2020 and all their income sources. Source Amit Suresh Nitin Varun Salary 35,000 38,500 29,000 42,000 Arrears 6,000 6,300 5,000 7,500 Bonus 1,000 1,100 1,000 1,240 Overtime 1,800 1,950 1,400 1,500 By what percent is the bonus of Varun less than the bonus of Amit and Nitin taken together?

  1. 45

  2. 38

  3. 48

  4. 40.9

  5. NA
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Varun's bonus is 1,240. Amit's bonus is 1,000 and Nitin's bonus is 1,000, totaling 2,000. The percentage less is ((2000 - 1240) / 2000) * 100 = (760 / 2000) * 100 = 38%.

Multiple choice

Directions: Study the given table and answer the following question. In the table given below, marks obtained by different students in different subjects are listed. Subjects (Maximum Marks) Students Hindi (100) English (100) Maths (100) Social (100) Science (75) Sanskrit (50) Phy.Edu (75) Anupama 85 95 87 87 65 35 71 Bhaskar 72 97 35 77 62 41 64 Charu 64 78 74 63 55 25 53 Deepak 65 62 69 81 70 40 50 Garima 92 82 81 79 49 30 61 Vishal 55 70 65 69 44 28 30 How many students have scored less than 60% marks in two or more subjects?

  1. 2

  2. 3

  3. 1

  4. 0

  5. 4
Reveal answer Fill a bubble to check yourself
C Correct answer
Multiple choice

The table below shows the number of students enrolled in five colleges over the five years (2010 to 2014). Year/College A B C D E 2010 400 270 350 430 470 2011 430 300 330 450 490 2012 370 250 360 470 410 2013 410 310 370 420 430 2014 420 290 340 480 480 In the year 2014, what percent of students were enrolled in college C (correct to one decimal place)?

  1. 16.9%

  2. 17.3%

  3. 16.7%

  4. 17.1%
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Total students in 2014 = 420 + 290 + 340 + 480 + 480 = 2010. Students in college C = 340. Percentage = (340 / 2010) * 100 = 16.915...% which is 16.9%.

Multiple choice

The table below shows the number of students enrolled in five colleges over the five years (2010 to 2014). Year/College A B C D E 2010 400 270 350 430 470 2011 430 300 330 450 490 2012 370 250 360 470 410 2013 410 310 370 420 430 2014 420 290 340 480 480 What is the ratio of the total students enrolled in colleges A and B in the year 2012 to the total students enrolled in colleges D and E in the year 2013?

  1. 62 : 85

  2. 62 : 88

  3. 63 : 86

  4. 58 : 63
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Total students in A and B in 2012: 370 + 250 = 620. Total students in D and E in 2013: 420 + 430 = 850. Ratio: 620/850 = 62:85.

Multiple choice

The table below shows the number of students enrolled in five colleges over the five years (2010 to 2014). Year/College A B C D E 2010 400 270 350 430 470 2011 430 300 330 450 490 2012 370 250 360 470 410 2013 410 310 370 420 430 2014 420 290 340 480 480 The number of students studying in college E in the year 2013 is approximately what percent of the number of students studying in colleges B, C and D taken together in the year 2013 (nearest to one decimal place)?

  1. 38.2%

  2. 38.6%

  3. 39.1%

  4. 39.4%
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

College E in 2013 = 430. Colleges B, C, D in 2013 = 310 + 370 + 420 = 1100. Percentage = (430 / 1100) * 100 = 39.0909...% which is approximately 39.1%.

Multiple choice

The table below indicates the percentage of students and the ratio of boys and girls in the various streams of a college. (Total students = 2600) Stream CE CS IT ME EC % Students 20% 18% 21% 22% 19% Boys : Girls 3 : 2 4 : 5 3 : 4 6 : 5 9 : 10 In which stream, is the difference in the percentage of boys and girls minimum?

  1. EC

  2. CS

  3. IT

  4. ME
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

To find the minimum difference, calculate the percentage of boys and girls in each stream. CE: 20% total, 3:2 ratio -> 12% boys, 8% girls (diff 4). CS: 18% total, 4:5 ratio -> 8% boys, 10% girls (diff 2). IT: 21% total, 3:4 ratio -> 9% boys, 12% girls (diff 3). ME: 22% total, 6:5 ratio -> 12% boys, 10% girls (diff 2). EC: 19% total, 9:10 ratio -> 9% boys, 10% girls (diff 1). EC has the smallest difference.

Multiple choice

Marks scored by a student in different subjects are given in the table below. Subjects Marks obtained out of 100 English 55 Hindi 90 Mathematics 75 Science 80 Foreign language 90 Five marks are to be deducted from each subject due to shortage of attendance. The average of the mean, median and mode of the marks obtained is __________.

  1. 79.33

  2. 77.67

  3. 82.66

  4. 73
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

After deducting 5 marks from each, the scores are 50, 85, 70, 75, 85. Mean = 365/5 = 73. Median (sorted: 50, 70, 75, 85, 85) = 75. Mode = 85. Average of mean, median, mode = (73 + 75 + 85) / 3 = 233 / 3 = 77.666...

Multiple choice

At the school cafeteria, there are 30 tables and each table can seat either 2 or 4 students. If there are a total of 80 students in one of the lunch sections, how many tables must seat exactly 4 students in this lunch section?

  1. 9

  2. 10

  3. 11

  4. 12
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Let x be the number of 4-student tables, y be the number of 2-student tables. x + y = 30. 4x + 2y = 80. From first, y = 30 - x. Substitute: 4x + 2(30 - x) = 80. 4x + 60 - 2x = 80. 2x = 20. x = 10.

Multiple choice

The table below shows the number of mobile phones (I-phones and Samsung phones) sold by two outlets P and Q in a fortnight. Outlets I-Phones Samsung Phones P 1,104 850 Q 705 603 Find the ratio of the total number of I-phones sold by outlets P and Q to the total number of Samsung phones sold by outlet Q.

  1. 60 : 11

  2. 3 : 1

  3. 5 : 2

  4. 1 : 3
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Total I-phones = 1104 (P) + 705 (Q) = 1809. Samsung phones at Q = 603. Ratio = 1809 : 603. Since 603 * 3 = 1809, the ratio is 3 : 1.

Multiple choice

Source Percent of those surveyed Streaming services 55% Social media 18% Cable TV 10% Movie theaters 5% Other/none of the above 12% The table above shows a summary of 1,500 responses to a survey question. Based on the table, how many of those surveyed get most of their entertainment from either streaming services or social media?

  1. 900

  2. 990

  3. 1,095

  4. 1,150
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Streaming services = 55%, Social media = 18%. Total = 55 + 18 = 73%. 73% of 1,500 = 0.73 * 1500 = 1,095.