To find the total class strength, we need to determine the ages of Rahul and Haroon and the number of boys and girls in the class. Let's break down the problem into smaller steps:

Step 1: Given Ratio of Ages
The ages of Rahul and Haroon are in the ratio of 7:5. Let's assume the common ratio is 'x'. So, Rahul's age is 7x and Haroon's age is 5x.

Step 2: Finding the Value of 'x'
We don't have enough information to determine the exact ages of Rahul and Haroon, but we can find the value of 'x' by considering their ages as multiples of the common ratio.

Since we know that the number of boys is 8 more than the number of girls, we can assume that Rahul is a boy and Haroon is a girl. Let's assume the number of girls in the class is 'y'. Therefore, the number of boys will be 'y + 8'.

Step 3: Relationship between Ages and Number of Boys and Girls
We can establish a relationship between the ages of Rahul and Haroon and the number of boys and girls in the class.

Since Rahul and Haroon are the only two students mentioned in the problem, the total number of students in the class will be the sum of the number of boys and girls, which is (y + y + 8) = (2y + 8).

Step 4: Solving the Equations
Now, we can equate the ratio of ages with the relationship between the number of boys and girls to find the value of 'x' and 'y'.

7x/5x = (2y + 8)
7/5 = (2y + 8)
7(2y + 8) = 5(2y)

14y + 56 = 10y
14y - 10y = -56
4y = -56
y = -56/4
y = -14

Since the number of students cannot be negative, we made an error somewhere in our calculations. It is likely that there is a mistake in the problem statement or a missing piece of information.

Please double-check the problem and provide any additional information if available, so that we can assist you better.

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