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Option 2 : 8 : 13
Calculation:
Total number of students who scored marks less than 60% = (10 + 30) = 40
Total number of students who scored marks 80% and above = (40 + 25) = 65
The ratio of the number of students who scored marks less than 60% to the number of students who scored marks 80% and above = (40 : 65)
⇒ 8 : 13
∴ The required ratio is 8 : 13
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