Question

A student of class collected rupees 1225 for tsunami relief fund. The contribution of each student was as much as the number of students in that class . How many students were there in that class? .which values of the students are depicted here?
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Answer 1

Answer:

Step-by-step explanation

No of student = amount by each student

Let it be =x

So ,

x*x=1225

x²=1225

So , by prime factorisation

1225=(7*5)(7*5)

1225=35²

So there were 35 students and each one contributed 35 rupees.

Answer 2

Answer:

Total students in class 35.

Step-by-step explanation:

let the number of the students in the class = x

A.T.Q

Then contribution by each student = x²

Total amount collected = x × x

x × x = 1225

x² = 1225

Number of students = √x² = √1225

√1225 = √5×5 × 7×7

√1225 = 5 × 7

√x² = 35

x = 35

ANS. number of students in the class is 35.