Study the following Bar chart and Answers the questions given below.
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1. 3:10
2. 4:15
3. 5:16
4. 11:15
5. 3:11
2. Number of boys in college S forms approximately what percent of number of boys in college Q ?
1. 75
2. 116
3. 124
4. 129
5. 135
3. What is the average number of boys from all the colleges together ?
1. 4100
2. 4000
3. 3800
4. 3750
5. 3600
4. If 100 students increased in every school , find the ratio between Girls and boys ratio after increasing in School P ?
1. 5:7
2. 6:7
3. 7:9
4. 4:7
5. Data insufficient
5. Find the ratio between total number of girls in P, Q and R to total number of boys in R , S and T ?
1. 12 :21
2. 12:23
3. 12:25
4. 12:27
5. 13:25
Solution and Answers :
1.5
Girls in School T = 1500
Total number of students in School Q = 3500+2000=5500
Ratio = 1500 : 5500 = 3:11
2.4
Boys in School S = 4500
Boys in School Q = 3500
==> percentage of Boys from school S in Boys in School Q = (4500*100)/3500=128.57~=129%
3.1
Total number of boys from all schools = 5500+3500+3000+4500+4000=20500
Average number of boys = 20500/5 = 4100
4.5
100 students increased . But here not mentioned number of girls and boys in the number of 100 students.
Data insufficient
5.2
Total number of girls in P, Q and R = 2500+2000+1500= 6000
Total number of boys in R, S and T = 3000+4500+4000=11500
Ratio = 6000 : 11500 = 12:23
