Quantitative Aptitude

Quant Quiz (DI)

Directions (1-5): Study the graphs carefully to answer the questions that follow:

Total number of children in 6 different schools and the percentage of girls in them

1.What is the total percentage of boys in schools R and U together (rounded off to two digits after decimal) 

(1)78.55 

(2)72. 45 

(3)76.28 

(4)75.83 

(5)None of these

2.What is the total number of boys in School  T ? 

(1)500 

(2)600 

(3)750 

(4)850 

(5)None of these

3.The total number of students in school R. is approximately what per cent of the total number of students in school S? 

(1)83

(2)75 

(3)78 

(4)82 

(5)94

4.What is the average number of boys in schools P and Q together? 

(1)1425 

(2)1575 

(3)1450 

(4)1625 

(5)None of these

5.What is the respective ratio of the number of girls in school P to the number of girls in school Q? 

(1)27 : 20 

(2)17 : 21

(3)20 : 27 

(4)41 : 21 

(5)None of these

Directions (6-10): Study the following pie-charts carefully and answer the questions given follow:

Discipline wise breakup of number of candidates appeared in interview and Discipline-

 wise breakup of number of candidates appeared in interview by the organization.

6.What was the ratio between the number of candidates appeared in interview from other disciplines and number of candidates selected-

 from Engineering discipline respectively (rounded off to the nearest integer)? 

(1)3609 : 813

(2)3094 : 813

(3)3094 : 1035 

(4)4125 : 1035 

(5)3981 : 767

7.The total number of the candidates appeared in interview from management and other disciplines

 was what percent of number of candidates appeared form engineering discipline? 

(1)50 

(2)150 

(3)200

(4)Cannot be determined 

(5)None of these 

8.Approximately what was the difference between the number of candidates selected 

from Agriculture discipline and number of candidates selected from Engineering discipline? 

(1)517

(2)665

(3)346

(4)813

(5)296

9.For which discipline was the difference in number-

 of candidates selected to number of candidates appeared in interview the maximum? 

(1)Management 

(2)Engineering 

(3)Science 

(4)Agriculture 

(5)None of these

10.Approximately what was the total number of candidates selected from Commerce and Agriculture discipline together? 

(1)1700

(2)1800

(3)2217

(4)1996

(5)1550

Answers with Explanation !!!!!!

1.(4) No. of boys in school R & U together
= (2000 * 72.5)/100 + (1000 * 82.5)/100 = 1450 + 825 = 2275
Required % = 2275/3000 * 100 = 75.83

2.(3)

3.(1)

4.(2) Required average = ½ {(2500 * 60)/100 + (3000 * 55)/100} = 1575

5.(3) 40% of 2500 : 45% of 3000

6.(2)
7.(2) (24/16)*100=150%

8.(5) (11-7)% of 7390= 296 (approx )

9.(3)
Science = (25780 * 28)/100 - (7390 * 32)/100 = 4853 appr.
Engineering = (25780 * 16)/100- (7390 * 11)/100 =4124 – 813 = 3311 appr.
Commerce = (25780 * 18)/100- (7390 * 16)/100 = 4690 – 1182 = 3458 Approx

10.(1) (16+7)% of 7390 = 1700