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
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
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
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
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
E
Let Number of students who completed the course be ‘c’
