1.The number of boys and girls in a class are in a ratio 7:5.The numbers of boys is 8 more than the number of girls.What is the total class strength?
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Step-by-step explanation:
let the number of boys be x+8 and girls x
5(x+8)=7x
5x+40=7x
x=20
total strength=number of boys + number of girls
=28+20
=48
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