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- Lesson 1 : Introduction
- Lesson 2 : Bar Chart
- Lesson 3 : Pie Chart
- Lesson 4 : Line Chart
- Lesson 5 : Tables
- Lesson 6 : Paragraphs
Study the following information to answer the given questions.
Percentage of students in various courses (A, B, C, D, E, F) and Percentage of girls out of these.
Total students : 1200
(800 girls + 400 boys)
Percentage in various courses
Total girls : 800
Percentage of Girls in Courses
1. For course D what is the respective ratio of boys and girls ?
Solution :
For course D
Number of girls = 30% of 800
= (30 x 800) / 100 = 240
Number of students
= 35 x (1/100) x 1200 = 420
So, number of boys = 420-240 = 180
So, required ratio = 180 : 240 = 3:4
2. For which pair of courses is the number of boys the same ?
Solution :
Number of boys
in course E = 12 % of 1200 - 14 % of 800
= 144 - 112 = 32
in course F = 13% of 1200 - 14% of 800 = 156 - 112 = 44
in course A = 20% of 1200 - 30% of 800 = 240 - 240 = 0
in course D = 35% of 1200 - 30% of 800 = 420 - 240 = 180
in course C = 5% of 1200 - 2% of 800 = 60-16 = 44
Obviously pair C and F is our answer
3. For course E, the number of girls is how much per cent more than the boys for course E ?
Solution :
For course E,
Number of girls = 14% of 800 = 112
Number of boys = 32
So, required percentage = (80/32) x 100 = 250
4. For which course is the number of boys the minimum ?
Solution :
From the solution 2, we can directly say that the answer is Course A.
5. How many girls are in course C ?
Solution :
Number of girls in course C
= 2% of 800 = 16
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Hi admin ! For question no 3.. It would be like 112/32*100.. Isn't it??
ReplyDeleteThey are asking for percentage of girls more than boys..
Deleteso it will be ((112-32)/32)*100
Postal assistant
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I have got 133 marks in ibps rrb II officer scale-I, cat. general belong from uttar pradesh. what are my chances for interview call .
ReplyDeleteI have got 133 marks in ibps rrb II officer scale-I, cat. general belong from uttar pradesh. what are my chances for interview call .
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ENGLISH- 17
MATHS-18
REASONING-19