The number of boys and girls in a class are in ratio 7:5 the number of boys is 8 more than the girls what is the total strnght of the class
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Suppose the student r "x"
The ratio of stu.are for boys=7x
For girls 5x
Then boys r 8 more than girls
7X+8=5x
7x-5x=8
2x=8
X=4
Strength of class 7x+5x=7*4+5*4
28+20=48
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