Let, boys =x
and, girls = 2x
Total students = 3x
The amount of students handed over reports = 30% of 2x+ 45% of x= 0.6x+.45x=1.05x
Who have not done yet = (3-1.05)x=1.95x
The percentage of them = (1.95x/3x)×100=65 % (ans)
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