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Let the number of boys in class X = a,
The number of girls will be a+3,
Let the number of boys in class X = a, The number of girls will be a+3,
The total number of students is a+a+3=11
2a+3=11
2a=11-3
2a=8
a=8/2
a=4
Therefore, the number of boys is 4, the number of girls will be 4+3 which will be 7. Please let me know if you understand. Thanks.
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