Ravi obtained 70 and 75 marks in first two unit test. Find the minimum marks he should get in the third test to have an average of at least 60 marks.

+2 votes
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asked Dec 28, 2016 in Mathematics by Rohit Singh (61,782 points) 35 133 357

Ravi obtained 70 and 75 marks in first two unit test. Find the minimum marks he should get in the third test to have an average of at least 60 marks.

1 Answer

+2 votes
answered Dec 28, 2016 by vikash (21,277 points) 4 19 70
selected Dec 28, 2016 by Rohit Singh
 
Best answer

Solution:
Let he should get x marks in the third test such that

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