Question

The students of Class VIII of a school donated
National Relief Fund. Each student donated as many rupees as the number of studen
in the class. Find the number of students in the class? Using the chapter squares and square roots

Answer 1

Prime factorization method for square roots:

1.First of all find the prime factors of the
given number.

2.Arrange the factor in pairs such that the two
primes in each pair are equal.

3.Take one number from each pair and multiply all
such numbers.

4. The product obtained in step 3 is the required
square root of the given number.


Solution:

We need to calculate the square root of 2401 to get the solution.



By prime factorization of 2401, we get


2401 = 7 x 7 x 7 x 7


√2401= 49



There are 49 students, each contributing 49
rupees.

Hence, the number of students in the class
= 49

hope it helps you...