In a /3students are boys if their 20 girls in the class find the streangth of the clas
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The total strength of class is 30.
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a/3 are boys that means remaining will be girls.
So, strength of girls
=2a/3
according to the question
2a/3=20 so
a=30
that means the strength of the class is 30
So, strength of girls
=2a/3
according to the question
2a/3=20 so
a=30
that means the strength of the class is 30
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