Given :-
- The ratio of the number of boys and girls images class is 10 : 7
- There are 35 girls in the class
To Find :-
- We have to find the the number of boys in a class ?
Let's Begin :-
Let the boys be 10x and girls be 7x
It is given in the question that,
- Number of girls in a class is 35
Therefore,
The value of x will be
Thus, The value of x is 5
Therefore,
The number of boys in a class will be
Hence, There are 50 boys in a class
According to the question,
The total strength of class will be
Subsitute the value of x in eq( 1 ) :-
Hence, It is verified that there are 50 boys and 35 girls in a class.