The number of boys in a class is 12. The total number of students in classis twice the number of boys plus 7. Take the number of girls in the class
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no. of boys =12
A/Q no. of students=2*12+7=31
so, no. of girls = 31 - 12 =19
A/Q no. of students=2*12+7=31
so, no. of girls = 31 - 12 =19
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