Q1-5. Directions for Questions: Study the given table carefully to answer the given questions.
(Number of students completed course = Number of students enrolled – Number of students dropped)
1. If in Mumbai, 40% of the students (M + F) who completed the course got the job, then how many students got the job?
a) 160
b) 165
c) 166
d) 170
e) None of these
EXPLANATION
Answer: C
Total number of students who completed the course = Number of students enrolled – Number of students dropped
= (270+210-33+32)
= 415
40 % of students who completed the course got job = (415*40)/100 = 166
2. In Jaipur, ratio of male to the female students who enrolled is 9 : 8 and the ratio of male to female who completed the course is 4 : 3, then find the number of students who got the job?
a) 153
b) 155
c) 160
d) Cannot be determined
e) None of these
EXPLANATION
Answer: A
Let total number of students enrolled = 17x
Male students enrolled = 9x
Female students enrolled = 8x
Number of students (Males) who completed the course = 9x – 30
Number of students (Females) who completed the course = 8x – 60
the ratio of male to female who completed the course is 4 : 3
=> (9x-30)/(8x-60)=4/3
=> x=30
total number of students enrolled = 17x = 17*30 = 510
30% of total number of students enrolled got the job
= 30% of 510 = 153
3. In Kolkata, number of students (M + F) who dropped out is 3/11 of the total number of students who enrolled for the course what % of students (M + F) in city D who completed the course got the job?
a) 80%
b) 82.5%
c) 85%
d) Cannot be determined
e) None of these
EXPLANATION
Answer: B
Dropped(D) = 3/11 Enrolled(E)
Number of students who completed the course = Enrolled – Dropped
= 8/11 E
60% of students who enrolled got job = (60/100) E = (3/5) E
Required percentage =[(3/5 E) / (8/11 E) ] *100
= 82.50%
4. In Delhi, 25% of (M + F) who completed the course got the job, then find the number of females who dropped out?
a) 100
b) 110
c) 108
d) Cannot be determined
e) None of these
EXPLANATION
Answer: C
Number of students who completed the course = (350 + 200) – (90 + F)
= 460 – F
25% of (M + F) who completed the course got the job
=> 25% of (460 – F) …. (1)
16% of total number of students enrolled got the job
=> 16% of 550 …. (2)
From eqn (1) & (2)
16/100*550=25/100*(460-F)
=>F=108
5. In city Chennai, number of male students who completed the course is equal to number of female students who completed the course. Only 96 students, i.e. 25% of (M + F) who completed course got job, then how may female enrolled?
a) 245
b) 250
c) 488
d) Cannot be determined
e) None of these
EXPLANATION
Answer: E
Let the Number of students who completed the course be ‘c’.
The number of Male students who Enrolled in the course be ‘M’
The number of Female students who Enrolled in the course be ‘F’
96 = 25/100 * c
=> c = 384 = (M + F) – (52 +20)
=> M + F = 456 … (1)
number of male students who completed the course is equal to the number of female student
(M – 52) = (F – 20)
M – F = 32 … (2)
From eqn (1) & (2)
F = 108
Q6-10. Direction: Study the following charts carefully and answer the questions given below:
6. What is the respective ratio of number of Men from city D to number of Women from city E?
1) 7203 : 1479
2) 27 : 37
3) 8908 : 4131
4) 91 : 79
5) None of these
EXPLANATION
Answer: 3
Req. ratio = (65.50 * 34)/100 : (38.25 * 27)/100
= 222700 :103275
= 8908 : 4131
7. Which city has the lowest number of Men?
1) A
2) E
3) B
4) C
5) None of these
EXPLANATION
Answer: 3
No. of men in city A = (44.35/100 * 42) thousands
= (44.35 * 42)/100 thousands
= 18627
No. of men in city B = (35.40 * 38)/100 thousands = 13452
No. of men in city C = (52.10 * 52)/100thousands = 27092
No. of men in city D = (65.50 * 34)/100 thousands = 22270
No. of men in city E = (38.25 * 50)/100 thousands = 19125
No. of men in city F = (45.50 * 47)/100 thousands = 21338
8. Total number of people from city C is approximately what percent of the total number of people all cities together ?
1) 19
2) 23
3) 26
4) 14
5) None of these
EXPLANATION
Answer: 1
Req. % = (52.10 * 100)/ (44.35 35.40 52.10 65.50 38.25 45.40)
= 18.5409 = 19 % (approx)
9. Number of Children from city F is what percent of those from city B ? (Rounded off to two digits after decimal)
1) 109.92
2) 111.47
3) 98.52
4) 132.71
5) 93.47
EXPLANATION
Answer: 1
Req. % = {(45.40 * 24)/100 * 100}/ {(35.40 * 28)/100} = 109.92%
10. What is the average number of Men from all the cities together?
1) 20357 (1/6)
2) 19617 (2/3)
3) 20317 (1/3)
4) 21445 (2/7)
5) None of these
EXPLANATION
Answer: 3
Req. average
= 1/6 {(44.35*42)/100 + (35.40*38)/100 + (52.10*52)/100 + (65.50*34)/100 + (38.25*50)/100 + (45.40*47)/100}
1/(6*100) (12190.4) thousand = 20317(1/3) thousands
