# Quantitative Aptitude: Data Interpretation Set 7

Directions (1 – 5):
Study the following bar graph and table to answer the following:  1. What is the number of students who passed in only Math in the 6 classes together?
A) 811
B) 623
C) 598
D) 824
E) 792
Option A
Solution:

For class 1: Students passed in at least 1 subject = 50/100 * 1200 = 600
Students passed in Math = 40/100 * 1200 = 480
Students passed in English = 29/100 * 1200 = 348
Similarly for all other classes: So the required sum = 252+100+112+75+77+195 = 811
2. Which class ranks third among the number of students who passed in English when arranged in ascending order?
A) 40%
B) 16%
C) 25%
D) 18%
E) 20%
Option C
Solution:

See the table in solution of 1st question: Required class is 5th.
3. How many students in class 4 have not passed in Math?
A) 4:3
B) 6:5
C) 2:5
D) 8:5
E) 2:3
Option B
Solution:

Passed = 20%
So not passed = 80/100 * 1500
4. What is the ratio of number of students who have passed in only Math in class 2 to the number of students who have passed in Math in class 3.
A) 40%
B) 56%
C) 2 : 7
D) 68%
E) 70%
Option E
Solution:

From the table in question 1 above:
Number of students passed in only math in class 2 = 500-400 = 100
Number of students passed in math in class 3 = 350
SO ratio 100 : 350
5. Which of the following is true about the number of students, n who have passed in only English in class 5?
A) 0 < n < 10
B) 10 < n < 14
C) 14 < n < 21
D) 21 < n < 37
E) 37 < n < 56
Option E
Solution:

Number of students who have passed in only English in class 5, n = 440 – 385 = 55

Directions (6 – 10):
The following pie charts show the percentage of people applied for jobs from different countries and people who got the job from each country respectively.
Success rate is defined as the number of people who got the job as a percentage of the number of job seekers.  1. Find the success rate of country A to C.
A) 125 : 184
B) 165 : 254
C) 276 : 123
D) 255 : 154
E) None of these
Option D
Solution:

Since the total number is same, there is no need to find the exact number of people who got job.
So required ratio:
A : C
15/11 : 14/17 = 255 : 154
2. Find the difference between the number of people who got job from countries F and H.
A) 4376
B) 4284
C) 4128
D) 4173
E) None of these
Option B
Solution:

Difference = (12-6)% of 71400 = 4284
3. What is the approximate percentage point difference between the success rate of countries D and G?
A) 6%
B) 4%
C) 8%
D) 5%
E) None of these
Option B
Solution:

For country D:
Total job seekers = 9/100 * 2356200 = 212058
and who got job = 21/100 * 71400 = 14994
so success rate = 14994/212058 * 100 = 7%
For county G:
Total job seekers = 14/100 * 2356200 = 329868
and who got job = 15/100 * 71400 = 10710
so success rate = 3%
So different in % points = 7 – 3 = 4
4. What is the success rate of country B?
A) 0.63%
B) 3.55%
C) 1.06%
D) 2.62%
E) 1.52%
Option C
Solution:

Total job seekers = 20/100 * 2356200 = 471240
and who got job = 7/100 * 71400 = 4998
so success rate = 4998/471240 * 100 = 1.06%
5. Find the success rate of female job seekers if the success rate of male job seekers is 3.14%
A) 11.23%
B) 12.17%
C) 18.45%
D) 16.24%
E) Cannot be determined