The marks scored by Rohit in two tests were 65 and 70. Find the minimum marks the should score in the third test to have an average of at least 65 marks.

Explanation

Let Rohit scored x marks in third paper

Then mean of three papers` =frac{65+70+x}{3}=frac{135+x}{3}`

But the average of three papers is at least `65`


Therefore, `frac{135+x}{3} geq 65`


Multiply both sides by `3 `, we get


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