Data Interpretation Practice Set - 4

Mentor for Bank Exams
Data Interpretation Practice Set - 4 
Directions (1 – 5): Refer to the following table and answer the given questions:
City
Number of students enrolled
Number of students dropped out
Percentage of enrolled students (M+F) who got jobs
Male (M)
Female (F)
Male (M)
Female (F)
A
350
200
90
-
16%
B
270
210
33
32
-
C
-
-
52
20
-
D
-
-
-
-
60%
E
-
-
30
60
30%
Note:
Number of students who completed the course = number of students enrolled – number of students dropped out
Only those students who completed the course could appear for job placement.
1. In city A, 25% of students (M+F) who completed the course got job. What is the number of female students who dropped out of the course in the same city?
(a) 110
(b) 96
(c) 116
(d) 124
(e) 108
2. In city E, respective ratio of male and female students who enrolled for the course is 9:8 and male to female students who completed the course is 4:3. What is the number of students (M+F) who got job from the same city?
(a) 153
(b) 169
(c) 163
(d) 63
(e) 53
3. In city D, number of students (M+F) who dropped out is 3/11th of the number of students (M+F) who enrolled for the course. What percent of students (M+F) in city D, who completed the course, got job?
(a) 86.25
(b) 76.5
(c) 72.25
(d) 80.5
(e) 72.72
4. In city C, number of male students who completed the course is equal to number of female students who completed it. Only 96 students, i.e. 25% of the students (M+F) who enrolled for the course in the same city?
(a) 244
(b) 218
(c) 212
(d) 214
(e) 215
5. In the city B, if 40% of students (M+F) who completed the course, got job, how many students (M+F) got job in city B?
(a) 160
(b) 154
(c) 162
(d) 166
(e) 127
Directions (6 – 10): Study the graph and answer the given questions:
Data regarding voting behaviour in five villages in block election in year 2014
6. In village D, the number of eligible voters grew by 20% from the year 2014 to 2015. Also in the year 2015, the number of actual registered voters was 75% of the total eligible voters the same year. The number of actual registered voters in village D in the year 2015 was what percent more than that of the same village in the year 2014?
(a) 40%
(b) 0%
(c) 20%
(d) 25%
(e) 30%
7. If the numbers of actual registered voters are equal in village D and E, what is the respective ratio between the total population of village D and that of village E?
(a) 35:24
(b) 41:30
(c) 35:32
(d) 36:25
(e) 24:25
8. In the village A, 75% of the actual registered voters were male registered voters and that of actual female registered voters was 1400, what was the total population of village A?
(a) 5000
(b) 7200
(c) 7500
(d) 6400
(e) 5200
9. In village B, the voter’s turnout was 36% of the total population. The voter’s turnout in village B was what percent of actual registered voters?
(a) 60%
(b) 65%
(c) 70%
(d) 80%
(e) 75%
10. Total population of village C was 12500 and the voter’s turnout was 80% of the actual registered voters. What was the voters’ turnout in village C?
(a) 7500
(b) 7200
(c) 6400
(d) 6000
(e) 8000
Solutions:
1. (e), let, female number of students dropped out = x
Then, according to the question, [(350-90)+(200-x)]*25/100 = (350+200)*16/100
Then on solving we get x= 108
2. (d), according to the question, [(9x-30) + (8x-60)] = 4x+3x
Or, 10x= 90
So x = 9
Therefore number of total students (male +female) = 3x+4x = 7x = 7*9 = 63
3. (e), let, total enrolled students (male + female) = x
Number of students dropped out (male + female) = 3x/11
Therefore number of students (male + female) who complete the course = x-3x/11 = 8x/11
Therefore the percentage of students (male + female) who completed the course and got job = (8x/11)/x * 100% = 800/11% = 72.72%
4. (a), let the number of enrolled male students from city C = x
And number of enrolled female students from city C = y
Percentage of number of students who got the job = number of students
25% = 96 => 1% = 96/25 => 100% = 96/25 * 100 = 384
Therefore number of total students (male + female) who complete the course = 384
Now, total number of enrolled students (male + female) = 384+52+20 = 456
According to the question, x+y = 456 and (x-52) = (y-20)
So equating both equation, we get x =244
Hence, number of enrolled male students from city C = 244
5. (e), total number of students (male + female) enrolled from city B = 270+210 = 480
Now, number of students who got the job = 480*40/100 = 192
But in these 192 students include the students also who dropped out.
Therefore required number of students (male + female) who got the job = 192-(33+32) = 127
6. (b), percentage of number of eligible voters in the village D, in the year 2015 = 60% + 20% = 80%
Number of actual voter registered in the year 2015 = 75%*80 = 60%
Required % = 60-60/60 * 100 = 0%
7. (a), let the population of village D= x
And the population of village E = y
Now, according to the question,
𝑥 60% 60% = 𝑦 70% 75%
On solving we get x/y = 35/24
8. (a), let the population of village A = x
Now according to the question,
𝑥 80% 70% 75% 𝑥 80% 70% 25% = 1400
Or, x*56/100 * ½ = 1400
On solving we get x = 5000
9. (a), let the total population of village B = x
Now according to the question, 𝑥 60% 80% = 36%
Then on solving x =6/8
Now the percentage = 6/8*80% = 60%
10. (b), no of voters turnout in village = 12500 × 80/100 × 90/100 × 80/100 = 7200