Quantitative Aptitude DI
Nov 07 2020
Here we are providing new series of Quantitative Aptitude Questions for upcoming exams, so the aspirants can practice it on a daily basis.
Study the following information carefully and answer the questions given below.
The given bar graph shows the number of students from 6 different colleges.
1) Ratio of the number of boys to girls from A is 5: 4. If the hostel fee of a girl is Rs.10000 and a boy is Rs.12000, then find the total hostel fee of both boy and girl?
A) 30 lakh
B) 20 lakh
C) 40 lakh
D) 60 lakh
E) None of these
2) What is the average number of students from B, C, D, E and F together?
A) 400
B) 401
C) 402
D) 404
E) None of these
3) The ratio of the number of boys to girls from B and E is 7:8 and 5:3 respectively. The number of girls from B and E together is approximately what percent of the number of boys from B and E together?
A) 82%
B) 85%
C) 89%
D) 92%
E) None of these
4) The number of students from C is what percent of the total number of students from D?
A) 40%
B) 50%
C) 55%
D) 45%
E) None of these
5) What is the ratio of the average of the students from A, B and F together to the average number of students from C, D and E together?
A) 31:41
B) 16:21
C) 33:43
D) 35:44
E) None of these
Answers :
1) Answer: C
Boys from A = 5/9 * 360 = 200
Girls from A = 4/9 * 360 = 160
Total hostel fee of boys = 200 * 12000 = 2400000
Total hostel fee of girls = 160 * 10000 = 1600000
Total revenue = 2400000 + 1600000 = 4000000 = 40 lakh
2) Answer: C
Average = (450 + 280 + 560 + 480 + 240)/5
= 402
3) Answer: A
Number of boys from B = 450 * 7/15 = 210
Number of girls from B = 450 * 8/15 = 240
Number of boys from E = 5/8 * 480 = 300
Number of girls from E = 3/8 * 480 = 180
Required percentage = (240 + 180)/(300 + 210) * 100
= 82%
4) Answer: B
Required percentage = (280/560) * 100 = 50%
5) Answer: D
Required ratio = (360 + 450 + 240)/3:(280 + 560 + 480)/3
=350: 440
= 35: 44