Question

In a school 20% of students are below 9 years the number of students above 9 years of age is 560 what is the total number of students in the school​

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Answer 1

QuestioN :

In a school 20% of students are below 9 years the number of students above 9 years of age is 560 what is the total number of students in the school​.

GiveN :

• In a school 20% of students are below 9 years.

• The number of students above 9 years of age is 560.

To FiNd :

• The total number of students in the school.

ANswer :

The Total number of students in the school = 700

SolutioN :

Let us assume:

• Total number of students be x.

• 20% of students are below 9 years = 20% of x

Formula used:

• Total students = Number of students below 9 years + Number of students above 9 years

Finding the total number of students in the school:

According to the question,

⇒ x = 20% of x + 560

⇒ x = 0.2x + 560

⇒ x - 0.2x = 560

⇒ 0.8x = 560

⇒ x = 560/0.8

⇒ x = 700

∴Hence, The Total number of students in the school = 700

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Answer 2

QuestioN :

In a school 20% of students are below 9 years the number of students above 9 years of age is 560 what is the total number of students in the school​.

GiveN :

• In a school 20% of students are below 9 years.

• The number of students above 9 years of age is 560.

To FiNd :

• The total number of students in the school.

ANswer :

The Total number of students in the school = 700

SolutioN :

Let us assume:

• Total number of students be x.

• 20% of students are below 9 years = 20% of x

Formula used:

• Total students = Number of students below 9 years + Number of students above 9 years

Finding the total number of students in the school:

According to the question,

⇒ x = 20% of x + 560

⇒ x = 0.2x + 560

⇒ x - 0.2x = 560

⇒ 0.8x = 560

⇒ x = 560/0.8

⇒ x = 700

∴Hence, The Total number of students in the school = 700

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