The students of a class donated a sum of Rs. 2,209. If each student do

1.	The students of a class donated a sum of Rs. 2,209. If each student donated as many rupees as the number of students in the class, then the number of students in the class is:1. 492. 533. 474. 51
Answer» Correct Answer - Option 3 : 47 Given: Total sum donated by class = Rs. 2209 Total number of student in class = Money donated by each student Concept used: Total sum = Total number of students in class × Money donated by each student. Calculation: Let each student donated Rs. x. Total number of student in class = Money donated by each student ⇒ Total number of student in class = x According to the question, Total sum = Total number of student in class × Money donated by each student ⇒ 2209 = x × x ⇒ x² = 2209 ⇒ x = √2209 ⇒ x = 47 ∴ The number of students in the class is 47.

The students of a class donated a sum of Rs. 2,209. If each student donated as many rupees as the number of students in the class, then the number of students in the class is:1. 492. 533. 474. 51

Answer» Correct Answer - Option 3 : 47

Given:

Total sum donated by class = Rs. 2209

Total number of student in class = Money donated by each student

Concept used:

Total sum = Total number of students in class × Money donated by each student.

Calculation:

Let each student donated Rs. x.

Total number of student in class = Money donated by each student

⇒ Total number of student in class = x

According to the question,

Total sum = Total number of student in class × Money donated by each student

⇒ 2209 = x × x

⇒ x² = 2209

⇒ x = √2209

⇒ x = 47

∴ The number of students in the class is 47.

Discussion

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