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Arathi took 3 examinations in a year. Th...

Arathi took 3 examinations in a year. The marks obtained by her in the second and third examinations are more than 5 and 10 respectively than in the first examination. If her average mark is atleast 80, find the minimum mark that she should get in the first examination.

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Arathi should get atleast 75 marks in the first examination.
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  13. If |2x-3| lt |x+5| , then x lies in the interval

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