CLEAR
Toprankers-Info

+91 7676564400

Mobile App

Get it on Google Play
Discussions
Tags:

Articles

Discussions
Submit Discussion
Satish Kumar

· started a discussion

· 1 Months ago

unresolved issue (Question: 26058.2 )

Given that total % of students in school C is 21%. But you have calculated with 23%.

Question:
DIRECTIONS: Read the graph and answer the questions that follows:

In the following charts, the first pie-chart shows the percentage distribution of total students studying in different schools and the second pie-chart shows the percentage distribution of total girl students studying in these schools. (Total number of students in all the schools together is 30000 and the ratio of boys to girls is 3:2.)

What is the average of the number of boys studying in school A, B and C?
Options:
A) 2150
B) 2200
C) 2350
D) 2400
E) 2450
Solution:

Ans(b);

Boys(A) = (30000 x 0.10) - (12000 x 0.15)

             = 3000 - 1800

             = 1200


Boys(B) = (30000 x 0.09) - (12000 x 0.12)
             = 2700 - 1440

             = 1260


Boys(C) = (30000 x 0.21) - (12000 x 0.18)
             = 6300 - 2160

             =4140


Avg. = (1200 + 1260 + 4140)/3

        = 6600 /3

        = 2200

Knowledge Expert

· commented

· 1 Months ago

yes its 21%, a silly mistake occurred......we fixed it......

Ans(b);

Boys(A) = (30000 x 0.10) - (12000 x 0.15)
= 3000 - 1800
= 1200

Boys(B) = (30000 x 0.09) - (12000 x 0.12)
= 2700 - 1440
= 1260

Boys(C) = (30000 x 0.21) - (12000 x 0.18)
= 6300 - 2160
=4140

Avg. = (1200 + 1260 + 4140)/3
= 6600 /3
= 2200
-logo
We at aim to provide most comprehensive content & test for practice which is carefully divided into various chapters and topics to help you focus on your weak areas.Our Practice mock test gives you unmatched analytics to help you realize your strong areas,time management and improvement areas.Our Short & Crisp notes on each topic will help you to quickly revise the topic along with the tips & tricks of the exams.
More About
-Info
-Info

Mobile App

Get it on Google Play
About Us Campus Ambassador Careers Contact Us Refund Policy

All Rights Reserved Top Rankers

User Policy
Disclaimer
Terms & Conditions