Directions: Study the following pie-chart and bar diagram and answer the following questions Percentage-wise Distribution of students in 6 Different Schools. Total number of students = 6000. Number of Boys in Each School Out of 6000 Students What is the sum of the number of girls in School C, the number of girls in School E and the number of boys in School D together ?

### Concept & Formula To find the number of girls in a school, we first calculate the total number of students in that school using its percentage share, and then subtract the given number of boys. $$ \text{Number of Girls} = \text{Total Students in School} - \text{Number of Boys} $$ ### Step-by-Step Solution * **Total students in all schools:** 6000 * **Girls in School C:** - Total students in C = $26\%$ of $6000 = 1560$ - Number of boys in C = $900$ - Number of girls in C = $1560 - 900 = 660$ * **Girls in School E:** - Total students in E = $29\%$ of $6000 = 1740$ - Number of boys in E = $1200$ - Number of girls in E = $1740 - 1200 = 540$ * **Boys in School D:** - Given as $600$ * **Required Sum:** - Sum = (Girls in C) + (Girls in E) + (Boys in D) - Sum = $660 + 540 + 600 = 1800$ ### Exam Strategy & Shortcut Instead of calculating $1\%$ of $6000$ every time, remember that $1\%$ is $60$. Total C = $26 \times 60 = 1560$. Total E = $29 \times 60 = 1740$. This drastically speeds up total student calculations for any school. ### Common Pitfall A frequent error is misreading the question and adding the total students of a school rather than specifically filtering out the girls, or accidentally adding girls for School D instead of boys. ### Final Answer Therefore, the correct answer is **1800**.